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authorVincent Ambo <mail@tazj.in>2020-07-15T07·20+0100
committerVincent Ambo <mail@tazj.in>2020-07-15T07·23+0100
commit1213b086a1015a662ab7ebd658f784534fd3116a (patch)
treed3bc8f3b7f40b8b60f0ef6fbd649cf765f4fdfb6 /third_party/immer/extra/js/lib/benchmark.js
parent1390827b9ea1e04bc9863e48930bfd16db3b716e (diff)
parent7f19d641647ac4ef313ed88d6b5c140983ce5436 (diff)
merge(3p/immer): Subtree merge at 'ad3e3556d' as 'third_party/immer' r/1299
Change-Id: I9636a41ad44b4218293833fd3e9456d9b07c731b
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+/*!
+ * Benchmark.js <https://benchmarkjs.com/>
+ * Copyright 2010-2016 Mathias Bynens <https://mths.be/>
+ * Based on JSLitmus.js, copyright Robert Kieffer <http://broofa.com/>
+ * Modified by John-David Dalton <http://allyoucanleet.com/>
+ * Available under MIT license <https://mths.be/mit>
+ */
+;(function() {
+  'use strict';
+
+  /** Used as a safe reference for `undefined` in pre ES5 environments. */
+  var undefined;
+
+  /** Used to determine if values are of the language type Object. */
+  var objectTypes = {
+    'function': true,
+    'object': true
+  };
+
+  /** Used as a reference to the global object. */
+  var root = (objectTypes[typeof window] && window) || this;
+
+  /** Detect free variable `define`. */
+  var freeDefine = typeof define == 'function' && typeof define.amd == 'object' && define.amd && define;
+
+  /** Detect free variable `exports`. */
+  var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
+
+  /** Detect free variable `module`. */
+  var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;
+
+  /** Detect free variable `global` from Node.js or Browserified code and use it as `root`. */
+  var freeGlobal = freeExports && freeModule && typeof global == 'object' && global;
+  if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal || freeGlobal.self === freeGlobal)) {
+    root = freeGlobal;
+  }
+
+  /** Detect free variable `require`. */
+  var freeRequire = typeof require == 'function' && require;
+
+  /** Used to assign each benchmark an incremented id. */
+  var counter = 0;
+
+  /** Detect the popular CommonJS extension `module.exports`. */
+  var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
+
+  /** Used to detect primitive types. */
+  var rePrimitive = /^(?:boolean|number|string|undefined)$/;
+
+  /** Used to make every compiled test unique. */
+  var uidCounter = 0;
+
+  /** Used to assign default `context` object properties. */
+  var contextProps = [
+    'Array', 'Date', 'Function', 'Math', 'Object', 'RegExp', 'String', '_',
+    'clearTimeout', 'chrome', 'chromium', 'document', 'navigator', 'phantom',
+    'platform', 'process', 'runtime', 'setTimeout'
+  ];
+
+  /** Used to avoid hz of Infinity. */
+  var divisors = {
+    '1': 4096,
+    '2': 512,
+    '3': 64,
+    '4': 8,
+    '5': 0
+  };
+
+  /**
+   * T-Distribution two-tailed critical values for 95% confidence.
+   * For more info see http://www.itl.nist.gov/div898/handbook/eda/section3/eda3672.htm.
+   */
+  var tTable = {
+    '1':  12.706, '2':  4.303, '3':  3.182, '4':  2.776, '5':  2.571, '6':  2.447,
+    '7':  2.365,  '8':  2.306, '9':  2.262, '10': 2.228, '11': 2.201, '12': 2.179,
+    '13': 2.16,   '14': 2.145, '15': 2.131, '16': 2.12,  '17': 2.11,  '18': 2.101,
+    '19': 2.093,  '20': 2.086, '21': 2.08,  '22': 2.074, '23': 2.069, '24': 2.064,
+    '25': 2.06,   '26': 2.056, '27': 2.052, '28': 2.048, '29': 2.045, '30': 2.042,
+    'infinity': 1.96
+  };
+
+  /**
+   * Critical Mann-Whitney U-values for 95% confidence.
+   * For more info see http://www.saburchill.com/IBbiology/stats/003.html.
+   */
+  var uTable = {
+    '5':  [0, 1, 2],
+    '6':  [1, 2, 3, 5],
+    '7':  [1, 3, 5, 6, 8],
+    '8':  [2, 4, 6, 8, 10, 13],
+    '9':  [2, 4, 7, 10, 12, 15, 17],
+    '10': [3, 5, 8, 11, 14, 17, 20, 23],
+    '11': [3, 6, 9, 13, 16, 19, 23, 26, 30],
+    '12': [4, 7, 11, 14, 18, 22, 26, 29, 33, 37],
+    '13': [4, 8, 12, 16, 20, 24, 28, 33, 37, 41, 45],
+    '14': [5, 9, 13, 17, 22, 26, 31, 36, 40, 45, 50, 55],
+    '15': [5, 10, 14, 19, 24, 29, 34, 39, 44, 49, 54, 59, 64],
+    '16': [6, 11, 15, 21, 26, 31, 37, 42, 47, 53, 59, 64, 70, 75],
+    '17': [6, 11, 17, 22, 28, 34, 39, 45, 51, 57, 63, 67, 75, 81, 87],
+    '18': [7, 12, 18, 24, 30, 36, 42, 48, 55, 61, 67, 74, 80, 86, 93, 99],
+    '19': [7, 13, 19, 25, 32, 38, 45, 52, 58, 65, 72, 78, 85, 92, 99, 106, 113],
+    '20': [8, 14, 20, 27, 34, 41, 48, 55, 62, 69, 76, 83, 90, 98, 105, 112, 119, 127],
+    '21': [8, 15, 22, 29, 36, 43, 50, 58, 65, 73, 80, 88, 96, 103, 111, 119, 126, 134, 142],
+    '22': [9, 16, 23, 30, 38, 45, 53, 61, 69, 77, 85, 93, 101, 109, 117, 125, 133, 141, 150, 158],
+    '23': [9, 17, 24, 32, 40, 48, 56, 64, 73, 81, 89, 98, 106, 115, 123, 132, 140, 149, 157, 166, 175],
+    '24': [10, 17, 25, 33, 42, 50, 59, 67, 76, 85, 94, 102, 111, 120, 129, 138, 147, 156, 165, 174, 183, 192],
+    '25': [10, 18, 27, 35, 44, 53, 62, 71, 80, 89, 98, 107, 117, 126, 135, 145, 154, 163, 173, 182, 192, 201, 211],
+    '26': [11, 19, 28, 37, 46, 55, 64, 74, 83, 93, 102, 112, 122, 132, 141, 151, 161, 171, 181, 191, 200, 210, 220, 230],
+    '27': [11, 20, 29, 38, 48, 57, 67, 77, 87, 97, 107, 118, 125, 138, 147, 158, 168, 178, 188, 199, 209, 219, 230, 240, 250],
+    '28': [12, 21, 30, 40, 50, 60, 70, 80, 90, 101, 111, 122, 132, 143, 154, 164, 175, 186, 196, 207, 218, 228, 239, 250, 261, 272],
+    '29': [13, 22, 32, 42, 52, 62, 73, 83, 94, 105, 116, 127, 138, 149, 160, 171, 182, 193, 204, 215, 226, 238, 249, 260, 271, 282, 294],
+    '30': [13, 23, 33, 43, 54, 65, 76, 87, 98, 109, 120, 131, 143, 154, 166, 177, 189, 200, 212, 223, 235, 247, 258, 270, 282, 293, 305, 317]
+  };
+
+  /*--------------------------------------------------------------------------*/
+
+  /**
+   * Create a new `Benchmark` function using the given `context` object.
+   *
+   * @static
+   * @memberOf Benchmark
+   * @param {Object} [context=root] The context object.
+   * @returns {Function} Returns a new `Benchmark` function.
+   */
+  function runInContext(context) {
+    // Exit early if unable to acquire lodash.
+    var _ = context && context._ || require('lodash') || root._;
+    if (!_) {
+      Benchmark.runInContext = runInContext;
+      return Benchmark;
+    }
+    // Avoid issues with some ES3 environments that attempt to use values, named
+    // after built-in constructors like `Object`, for the creation of literals.
+    // ES5 clears this up by stating that literals must use built-in constructors.
+    // See http://es5.github.io/#x11.1.5.
+    context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;
+
+    /** Native constructor references. */
+    var Array = context.Array,
+        Date = context.Date,
+        Function = context.Function,
+        Math = context.Math,
+        Object = context.Object,
+        RegExp = context.RegExp,
+        String = context.String;
+
+    /** Used for `Array` and `Object` method references. */
+    var arrayRef = [],
+        objectProto = Object.prototype;
+
+    /** Native method shortcuts. */
+    var abs = Math.abs,
+        clearTimeout = context.clearTimeout,
+        floor = Math.floor,
+        log = Math.log,
+        max = Math.max,
+        min = Math.min,
+        pow = Math.pow,
+        push = arrayRef.push,
+        setTimeout = context.setTimeout,
+        shift = arrayRef.shift,
+        slice = arrayRef.slice,
+        sqrt = Math.sqrt,
+        toString = objectProto.toString,
+        unshift = arrayRef.unshift;
+
+    /** Used to avoid inclusion in Browserified bundles. */
+    var req = require;
+
+    /** Detect DOM document object. */
+    var doc = isHostType(context, 'document') && context.document;
+
+    /** Used to access Wade Simmons' Node.js `microtime` module. */
+    var microtimeObject = req('microtime');
+
+    /** Used to access Node.js's high resolution timer. */
+    var processObject = isHostType(context, 'process') && context.process;
+
+    /** Used to prevent a `removeChild` memory leak in IE < 9. */
+    var trash = doc && doc.createElement('div');
+
+    /** Used to integrity check compiled tests. */
+    var uid = 'uid' + _.now();
+
+    /** Used to avoid infinite recursion when methods call each other. */
+    var calledBy = {};
+
+    /**
+     * An object used to flag environments/features.
+     *
+     * @static
+     * @memberOf Benchmark
+     * @type Object
+     */
+    var support = {};
+
+    (function() {
+
+      /**
+       * Detect if running in a browser environment.
+       *
+       * @memberOf Benchmark.support
+       * @type boolean
+       */
+      support.browser = doc && isHostType(context, 'navigator') && !isHostType(context, 'phantom');
+
+      /**
+       * Detect if the Timers API exists.
+       *
+       * @memberOf Benchmark.support
+       * @type boolean
+       */
+      support.timeout = isHostType(context, 'setTimeout') && isHostType(context, 'clearTimeout');
+
+      /**
+       * Detect if function decompilation is support.
+       *
+       * @name decompilation
+       * @memberOf Benchmark.support
+       * @type boolean
+       */
+      try {
+        // Safari 2.x removes commas in object literals from `Function#toString` results.
+        // See http://webk.it/11609 for more details.
+        // Firefox 3.6 and Opera 9.25 strip grouping parentheses from `Function#toString` results.
+        // See http://bugzil.la/559438 for more details.
+        support.decompilation = Function(
+          ('return (' + (function(x) { return { 'x': '' + (1 + x) + '', 'y': 0 }; }) + ')')
+          // Avoid issues with code added by Istanbul.
+          .replace(/__cov__[^;]+;/g, '')
+        )()(0).x === '1';
+      } catch(e) {
+        support.decompilation = false;
+      }
+    }());
+
+    /**
+     * Timer object used by `clock()` and `Deferred#resolve`.
+     *
+     * @private
+     * @type Object
+     */
+    var timer = {
+
+      /**
+       * The timer namespace object or constructor.
+       *
+       * @private
+       * @memberOf timer
+       * @type {Function|Object}
+       */
+      'ns': Date,
+
+      /**
+       * Starts the deferred timer.
+       *
+       * @private
+       * @memberOf timer
+       * @param {Object} deferred The deferred instance.
+       */
+      'start': null, // Lazy defined in `clock()`.
+
+      /**
+       * Stops the deferred timer.
+       *
+       * @private
+       * @memberOf timer
+       * @param {Object} deferred The deferred instance.
+       */
+      'stop': null // Lazy defined in `clock()`.
+    };
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * The Benchmark constructor.
+     *
+     * Note: The Benchmark constructor exposes a handful of lodash methods to
+     * make working with arrays, collections, and objects easier. The lodash
+     * methods are:
+     * [`each/forEach`](https://lodash.com/docs#forEach), [`forOwn`](https://lodash.com/docs#forOwn),
+     * [`has`](https://lodash.com/docs#has), [`indexOf`](https://lodash.com/docs#indexOf),
+     * [`map`](https://lodash.com/docs#map), and [`reduce`](https://lodash.com/docs#reduce)
+     *
+     * @constructor
+     * @param {string} name A name to identify the benchmark.
+     * @param {Function|string} fn The test to benchmark.
+     * @param {Object} [options={}] Options object.
+     * @example
+     *
+     * // basic usage (the `new` operator is optional)
+     * var bench = new Benchmark(fn);
+     *
+     * // or using a name first
+     * var bench = new Benchmark('foo', fn);
+     *
+     * // or with options
+     * var bench = new Benchmark('foo', fn, {
+     *
+     *   // displayed by `Benchmark#toString` if `name` is not available
+     *   'id': 'xyz',
+     *
+     *   // called when the benchmark starts running
+     *   'onStart': onStart,
+     *
+     *   // called after each run cycle
+     *   'onCycle': onCycle,
+     *
+     *   // called when aborted
+     *   'onAbort': onAbort,
+     *
+     *   // called when a test errors
+     *   'onError': onError,
+     *
+     *   // called when reset
+     *   'onReset': onReset,
+     *
+     *   // called when the benchmark completes running
+     *   'onComplete': onComplete,
+     *
+     *   // compiled/called before the test loop
+     *   'setup': setup,
+     *
+     *   // compiled/called after the test loop
+     *   'teardown': teardown
+     * });
+     *
+     * // or name and options
+     * var bench = new Benchmark('foo', {
+     *
+     *   // a flag to indicate the benchmark is deferred
+     *   'defer': true,
+     *
+     *   // benchmark test function
+     *   'fn': function(deferred) {
+     *     // call `Deferred#resolve` when the deferred test is finished
+     *     deferred.resolve();
+     *   }
+     * });
+     *
+     * // or options only
+     * var bench = new Benchmark({
+     *
+     *   // benchmark name
+     *   'name': 'foo',
+     *
+     *   // benchmark test as a string
+     *   'fn': '[1,2,3,4].sort()'
+     * });
+     *
+     * // a test's `this` binding is set to the benchmark instance
+     * var bench = new Benchmark('foo', function() {
+     *   'My name is '.concat(this.name); // "My name is foo"
+     * });
+     */
+    function Benchmark(name, fn, options) {
+      var bench = this;
+
+      // Allow instance creation without the `new` operator.
+      if (!(bench instanceof Benchmark)) {
+        return new Benchmark(name, fn, options);
+      }
+      // Juggle arguments.
+      if (_.isPlainObject(name)) {
+        // 1 argument (options).
+        options = name;
+      }
+      else if (_.isFunction(name)) {
+        // 2 arguments (fn, options).
+        options = fn;
+        fn = name;
+      }
+      else if (_.isPlainObject(fn)) {
+        // 2 arguments (name, options).
+        options = fn;
+        fn = null;
+        bench.name = name;
+      }
+      else {
+        // 3 arguments (name, fn [, options]).
+        bench.name = name;
+      }
+      setOptions(bench, options);
+
+      bench.id || (bench.id = ++counter);
+      bench.fn == null && (bench.fn = fn);
+
+      bench.stats = cloneDeep(bench.stats);
+      bench.times = cloneDeep(bench.times);
+    }
+
+    /**
+     * The Deferred constructor.
+     *
+     * @constructor
+     * @memberOf Benchmark
+     * @param {Object} clone The cloned benchmark instance.
+     */
+    function Deferred(clone) {
+      var deferred = this;
+      if (!(deferred instanceof Deferred)) {
+        return new Deferred(clone);
+      }
+      deferred.benchmark = clone;
+      clock(deferred);
+    }
+
+    /**
+     * The Event constructor.
+     *
+     * @constructor
+     * @memberOf Benchmark
+     * @param {Object|string} type The event type.
+     */
+    function Event(type) {
+      var event = this;
+      if (type instanceof Event) {
+        return type;
+      }
+      return (event instanceof Event)
+        ? _.assign(event, { 'timeStamp': _.now() }, typeof type == 'string' ? { 'type': type } : type)
+        : new Event(type);
+    }
+
+    /**
+     * The Suite constructor.
+     *
+     * Note: Each Suite instance has a handful of wrapped lodash methods to
+     * make working with Suites easier. The wrapped lodash methods are:
+     * [`each/forEach`](https://lodash.com/docs#forEach), [`indexOf`](https://lodash.com/docs#indexOf),
+     * [`map`](https://lodash.com/docs#map), and [`reduce`](https://lodash.com/docs#reduce)
+     *
+     * @constructor
+     * @memberOf Benchmark
+     * @param {string} name A name to identify the suite.
+     * @param {Object} [options={}] Options object.
+     * @example
+     *
+     * // basic usage (the `new` operator is optional)
+     * var suite = new Benchmark.Suite;
+     *
+     * // or using a name first
+     * var suite = new Benchmark.Suite('foo');
+     *
+     * // or with options
+     * var suite = new Benchmark.Suite('foo', {
+     *
+     *   // called when the suite starts running
+     *   'onStart': onStart,
+     *
+     *   // called between running benchmarks
+     *   'onCycle': onCycle,
+     *
+     *   // called when aborted
+     *   'onAbort': onAbort,
+     *
+     *   // called when a test errors
+     *   'onError': onError,
+     *
+     *   // called when reset
+     *   'onReset': onReset,
+     *
+     *   // called when the suite completes running
+     *   'onComplete': onComplete
+     * });
+     */
+    function Suite(name, options) {
+      var suite = this;
+
+      // Allow instance creation without the `new` operator.
+      if (!(suite instanceof Suite)) {
+        return new Suite(name, options);
+      }
+      // Juggle arguments.
+      if (_.isPlainObject(name)) {
+        // 1 argument (options).
+        options = name;
+      } else {
+        // 2 arguments (name [, options]).
+        suite.name = name;
+      }
+      setOptions(suite, options);
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * A specialized version of `_.cloneDeep` which only clones arrays and plain
+     * objects assigning all other values by reference.
+     *
+     * @private
+     * @param {*} value The value to clone.
+     * @returns {*} The cloned value.
+     */
+    var cloneDeep = _.partial(_.cloneDeepWith, _, function(value) {
+      // Only clone primitives, arrays, and plain objects.
+      return (_.isObject(value) && !_.isArray(value) && !_.isPlainObject(value))
+        ? value
+        : undefined;
+    });
+
+    /**
+     * Creates a function from the given arguments string and body.
+     *
+     * @private
+     * @param {string} args The comma separated function arguments.
+     * @param {string} body The function body.
+     * @returns {Function} The new function.
+     */
+    function createFunction() {
+      // Lazy define.
+      createFunction = function(args, body) {
+        var result,
+            anchor = freeDefine ? freeDefine.amd : Benchmark,
+            prop = uid + 'createFunction';
+
+        runScript((freeDefine ? 'define.amd.' : 'Benchmark.') + prop + '=function(' + args + '){' + body + '}');
+        result = anchor[prop];
+        delete anchor[prop];
+        return result;
+      };
+      // Fix JaegerMonkey bug.
+      // For more information see http://bugzil.la/639720.
+      createFunction = support.browser && (createFunction('', 'return"' + uid + '"') || _.noop)() == uid ? createFunction : Function;
+      return createFunction.apply(null, arguments);
+    }
+
+    /**
+     * Delay the execution of a function based on the benchmark's `delay` property.
+     *
+     * @private
+     * @param {Object} bench The benchmark instance.
+     * @param {Object} fn The function to execute.
+     */
+    function delay(bench, fn) {
+      bench._timerId = _.delay(fn, bench.delay * 1e3);
+    }
+
+    /**
+     * Destroys the given element.
+     *
+     * @private
+     * @param {Element} element The element to destroy.
+     */
+    function destroyElement(element) {
+      trash.appendChild(element);
+      trash.innerHTML = '';
+    }
+
+    /**
+     * Gets the name of the first argument from a function's source.
+     *
+     * @private
+     * @param {Function} fn The function.
+     * @returns {string} The argument name.
+     */
+    function getFirstArgument(fn) {
+      return (!_.has(fn, 'toString') &&
+        (/^[\s(]*function[^(]*\(([^\s,)]+)/.exec(fn) || 0)[1]) || '';
+    }
+
+    /**
+     * Computes the arithmetic mean of a sample.
+     *
+     * @private
+     * @param {Array} sample The sample.
+     * @returns {number} The mean.
+     */
+    function getMean(sample) {
+      return (_.reduce(sample, function(sum, x) {
+        return sum + x;
+      }) / sample.length) || 0;
+    }
+
+    /**
+     * Gets the source code of a function.
+     *
+     * @private
+     * @param {Function} fn The function.
+     * @returns {string} The function's source code.
+     */
+    function getSource(fn) {
+      var result = '';
+      if (isStringable(fn)) {
+        result = String(fn);
+      } else if (support.decompilation) {
+        // Escape the `{` for Firefox 1.
+        result = _.result(/^[^{]+\{([\s\S]*)\}\s*$/.exec(fn), 1);
+      }
+      // Trim string.
+      result = (result || '').replace(/^\s+|\s+$/g, '');
+
+      // Detect strings containing only the "use strict" directive.
+      return /^(?:\/\*+[\w\W]*?\*\/|\/\/.*?[\n\r\u2028\u2029]|\s)*(["'])use strict\1;?$/.test(result)
+        ? ''
+        : result;
+    }
+
+    /**
+     * Checks if an object is of the specified class.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @param {string} name The name of the class.
+     * @returns {boolean} Returns `true` if the value is of the specified class, else `false`.
+     */
+    function isClassOf(value, name) {
+      return value != null && toString.call(value) == '[object ' + name + ']';
+    }
+
+    /**
+     * Host objects can return type values that are different from their actual
+     * data type. The objects we are concerned with usually return non-primitive
+     * types of "object", "function", or "unknown".
+     *
+     * @private
+     * @param {*} object The owner of the property.
+     * @param {string} property The property to check.
+     * @returns {boolean} Returns `true` if the property value is a non-primitive, else `false`.
+     */
+    function isHostType(object, property) {
+      if (object == null) {
+        return false;
+      }
+      var type = typeof object[property];
+      return !rePrimitive.test(type) && (type != 'object' || !!object[property]);
+    }
+
+    /**
+     * Checks if a value can be safely coerced to a string.
+     *
+     * @private
+     * @param {*} value The value to check.
+     * @returns {boolean} Returns `true` if the value can be coerced, else `false`.
+     */
+    function isStringable(value) {
+      return _.isString(value) || (_.has(value, 'toString') && _.isFunction(value.toString));
+    }
+
+    /**
+     * A wrapper around `require` to suppress `module missing` errors.
+     *
+     * @private
+     * @param {string} id The module id.
+     * @returns {*} The exported module or `null`.
+     */
+    function require(id) {
+      try {
+        var result = freeExports && freeRequire(id);
+      } catch(e) {}
+      return result || null;
+    }
+
+    /**
+     * Runs a snippet of JavaScript via script injection.
+     *
+     * @private
+     * @param {string} code The code to run.
+     */
+    function runScript(code) {
+      var anchor = freeDefine ? define.amd : Benchmark,
+          script = doc.createElement('script'),
+          sibling = doc.getElementsByTagName('script')[0],
+          parent = sibling.parentNode,
+          prop = uid + 'runScript',
+          prefix = '(' + (freeDefine ? 'define.amd.' : 'Benchmark.') + prop + '||function(){})();';
+
+      // Firefox 2.0.0.2 cannot use script injection as intended because it executes
+      // asynchronously, but that's OK because script injection is only used to avoid
+      // the previously commented JaegerMonkey bug.
+      try {
+        // Remove the inserted script *before* running the code to avoid differences
+        // in the expected script element count/order of the document.
+        script.appendChild(doc.createTextNode(prefix + code));
+        anchor[prop] = function() { destroyElement(script); };
+      } catch(e) {
+        parent = parent.cloneNode(false);
+        sibling = null;
+        script.text = code;
+      }
+      parent.insertBefore(script, sibling);
+      delete anchor[prop];
+    }
+
+    /**
+     * A helper function for setting options/event handlers.
+     *
+     * @private
+     * @param {Object} object The benchmark or suite instance.
+     * @param {Object} [options={}] Options object.
+     */
+    function setOptions(object, options) {
+      options = object.options = _.assign({}, cloneDeep(object.constructor.options), cloneDeep(options));
+
+      _.forOwn(options, function(value, key) {
+        if (value != null) {
+          // Add event listeners.
+          if (/^on[A-Z]/.test(key)) {
+            _.each(key.split(' '), function(key) {
+              object.on(key.slice(2).toLowerCase(), value);
+            });
+          } else if (!_.has(object, key)) {
+            object[key] = cloneDeep(value);
+          }
+        }
+      });
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Handles cycling/completing the deferred benchmark.
+     *
+     * @memberOf Benchmark.Deferred
+     */
+    function resolve() {
+      var deferred = this,
+          clone = deferred.benchmark,
+          bench = clone._original;
+
+      if (bench.aborted) {
+        // cycle() -> clone cycle/complete event -> compute()'s invoked bench.run() cycle/complete.
+        deferred.teardown();
+        clone.running = false;
+        cycle(deferred);
+      }
+      else if (++deferred.cycles < clone.count) {
+        clone.compiled.call(deferred, context, timer);
+      }
+      else {
+        timer.stop(deferred);
+        deferred.teardown();
+        delay(clone, function() { cycle(deferred); });
+      }
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * A generic `Array#filter` like method.
+     *
+     * @static
+     * @memberOf Benchmark
+     * @param {Array} array The array to iterate over.
+     * @param {Function|string} callback The function/alias called per iteration.
+     * @returns {Array} A new array of values that passed callback filter.
+     * @example
+     *
+     * // get odd numbers
+     * Benchmark.filter([1, 2, 3, 4, 5], function(n) {
+     *   return n % 2;
+     * }); // -> [1, 3, 5];
+     *
+     * // get fastest benchmarks
+     * Benchmark.filter(benches, 'fastest');
+     *
+     * // get slowest benchmarks
+     * Benchmark.filter(benches, 'slowest');
+     *
+     * // get benchmarks that completed without erroring
+     * Benchmark.filter(benches, 'successful');
+     */
+    function filter(array, callback) {
+      if (callback === 'successful') {
+        // Callback to exclude those that are errored, unrun, or have hz of Infinity.
+        callback = function(bench) {
+          return bench.cycles && _.isFinite(bench.hz) && !bench.error;
+        };
+      }
+      else if (callback === 'fastest' || callback === 'slowest') {
+        // Get successful, sort by period + margin of error, and filter fastest/slowest.
+        var result = filter(array, 'successful').sort(function(a, b) {
+          a = a.stats; b = b.stats;
+          return (a.mean + a.moe > b.mean + b.moe ? 1 : -1) * (callback === 'fastest' ? 1 : -1);
+        });
+
+        return _.filter(result, function(bench) {
+          return result[0].compare(bench) == 0;
+        });
+      }
+      return _.filter(array, callback);
+    }
+
+    /**
+     * Converts a number to a more readable comma-separated string representation.
+     *
+     * @static
+     * @memberOf Benchmark
+     * @param {number} number The number to convert.
+     * @returns {string} The more readable string representation.
+     */
+    function formatNumber(number) {
+      number = String(number).split('.');
+      return number[0].replace(/(?=(?:\d{3})+$)(?!\b)/g, ',') +
+        (number[1] ? '.' + number[1] : '');
+    }
+
+    /**
+     * Invokes a method on all items in an array.
+     *
+     * @static
+     * @memberOf Benchmark
+     * @param {Array} benches Array of benchmarks to iterate over.
+     * @param {Object|string} name The name of the method to invoke OR options object.
+     * @param {...*} [args] Arguments to invoke the method with.
+     * @returns {Array} A new array of values returned from each method invoked.
+     * @example
+     *
+     * // invoke `reset` on all benchmarks
+     * Benchmark.invoke(benches, 'reset');
+     *
+     * // invoke `emit` with arguments
+     * Benchmark.invoke(benches, 'emit', 'complete', listener);
+     *
+     * // invoke `run(true)`, treat benchmarks as a queue, and register invoke callbacks
+     * Benchmark.invoke(benches, {
+     *
+     *   // invoke the `run` method
+     *   'name': 'run',
+     *
+     *   // pass a single argument
+     *   'args': true,
+     *
+     *   // treat as queue, removing benchmarks from front of `benches` until empty
+     *   'queued': true,
+     *
+     *   // called before any benchmarks have been invoked.
+     *   'onStart': onStart,
+     *
+     *   // called between invoking benchmarks
+     *   'onCycle': onCycle,
+     *
+     *   // called after all benchmarks have been invoked.
+     *   'onComplete': onComplete
+     * });
+     */
+    function invoke(benches, name) {
+      var args,
+          bench,
+          queued,
+          index = -1,
+          eventProps = { 'currentTarget': benches },
+          options = { 'onStart': _.noop, 'onCycle': _.noop, 'onComplete': _.noop },
+          result = _.toArray(benches);
+
+      /**
+       * Invokes the method of the current object and if synchronous, fetches the next.
+       */
+      function execute() {
+        var listeners,
+            async = isAsync(bench);
+
+        if (async) {
+          // Use `getNext` as the first listener.
+          bench.on('complete', getNext);
+          listeners = bench.events.complete;
+          listeners.splice(0, 0, listeners.pop());
+        }
+        // Execute method.
+        result[index] = _.isFunction(bench && bench[name]) ? bench[name].apply(bench, args) : undefined;
+        // If synchronous return `true` until finished.
+        return !async && getNext();
+      }
+
+      /**
+       * Fetches the next bench or executes `onComplete` callback.
+       */
+      function getNext(event) {
+        var cycleEvent,
+            last = bench,
+            async = isAsync(last);
+
+        if (async) {
+          last.off('complete', getNext);
+          last.emit('complete');
+        }
+        // Emit "cycle" event.
+        eventProps.type = 'cycle';
+        eventProps.target = last;
+        cycleEvent = Event(eventProps);
+        options.onCycle.call(benches, cycleEvent);
+
+        // Choose next benchmark if not exiting early.
+        if (!cycleEvent.aborted && raiseIndex() !== false) {
+          bench = queued ? benches[0] : result[index];
+          if (isAsync(bench)) {
+            delay(bench, execute);
+          }
+          else if (async) {
+            // Resume execution if previously asynchronous but now synchronous.
+            while (execute()) {}
+          }
+          else {
+            // Continue synchronous execution.
+            return true;
+          }
+        } else {
+          // Emit "complete" event.
+          eventProps.type = 'complete';
+          options.onComplete.call(benches, Event(eventProps));
+        }
+        // When used as a listener `event.aborted = true` will cancel the rest of
+        // the "complete" listeners because they were already called above and when
+        // used as part of `getNext` the `return false` will exit the execution while-loop.
+        if (event) {
+          event.aborted = true;
+        } else {
+          return false;
+        }
+      }
+
+      /**
+       * Checks if invoking `Benchmark#run` with asynchronous cycles.
+       */
+      function isAsync(object) {
+        // Avoid using `instanceof` here because of IE memory leak issues with host objects.
+        var async = args[0] && args[0].async;
+        return name == 'run' && (object instanceof Benchmark) &&
+          ((async == null ? object.options.async : async) && support.timeout || object.defer);
+      }
+
+      /**
+       * Raises `index` to the next defined index or returns `false`.
+       */
+      function raiseIndex() {
+        index++;
+
+        // If queued remove the previous bench.
+        if (queued && index > 0) {
+          shift.call(benches);
+        }
+        // If we reached the last index then return `false`.
+        return (queued ? benches.length : index < result.length)
+          ? index
+          : (index = false);
+      }
+      // Juggle arguments.
+      if (_.isString(name)) {
+        // 2 arguments (array, name).
+        args = slice.call(arguments, 2);
+      } else {
+        // 2 arguments (array, options).
+        options = _.assign(options, name);
+        name = options.name;
+        args = _.isArray(args = 'args' in options ? options.args : []) ? args : [args];
+        queued = options.queued;
+      }
+      // Start iterating over the array.
+      if (raiseIndex() !== false) {
+        // Emit "start" event.
+        bench = result[index];
+        eventProps.type = 'start';
+        eventProps.target = bench;
+        options.onStart.call(benches, Event(eventProps));
+
+        // End early if the suite was aborted in an "onStart" listener.
+        if (name == 'run' && (benches instanceof Suite) && benches.aborted) {
+          // Emit "cycle" event.
+          eventProps.type = 'cycle';
+          options.onCycle.call(benches, Event(eventProps));
+          // Emit "complete" event.
+          eventProps.type = 'complete';
+          options.onComplete.call(benches, Event(eventProps));
+        }
+        // Start method execution.
+        else {
+          if (isAsync(bench)) {
+            delay(bench, execute);
+          } else {
+            while (execute()) {}
+          }
+        }
+      }
+      return result;
+    }
+
+    /**
+     * Creates a string of joined array values or object key-value pairs.
+     *
+     * @static
+     * @memberOf Benchmark
+     * @param {Array|Object} object The object to operate on.
+     * @param {string} [separator1=','] The separator used between key-value pairs.
+     * @param {string} [separator2=': '] The separator used between keys and values.
+     * @returns {string} The joined result.
+     */
+    function join(object, separator1, separator2) {
+      var result = [],
+          length = (object = Object(object)).length,
+          arrayLike = length === length >>> 0;
+
+      separator2 || (separator2 = ': ');
+      _.each(object, function(value, key) {
+        result.push(arrayLike ? value : key + separator2 + value);
+      });
+      return result.join(separator1 || ',');
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Aborts all benchmarks in the suite.
+     *
+     * @name abort
+     * @memberOf Benchmark.Suite
+     * @returns {Object} The suite instance.
+     */
+    function abortSuite() {
+      var event,
+          suite = this,
+          resetting = calledBy.resetSuite;
+
+      if (suite.running) {
+        event = Event('abort');
+        suite.emit(event);
+        if (!event.cancelled || resetting) {
+          // Avoid infinite recursion.
+          calledBy.abortSuite = true;
+          suite.reset();
+          delete calledBy.abortSuite;
+
+          if (!resetting) {
+            suite.aborted = true;
+            invoke(suite, 'abort');
+          }
+        }
+      }
+      return suite;
+    }
+
+    /**
+     * Adds a test to the benchmark suite.
+     *
+     * @memberOf Benchmark.Suite
+     * @param {string} name A name to identify the benchmark.
+     * @param {Function|string} fn The test to benchmark.
+     * @param {Object} [options={}] Options object.
+     * @returns {Object} The suite instance.
+     * @example
+     *
+     * // basic usage
+     * suite.add(fn);
+     *
+     * // or using a name first
+     * suite.add('foo', fn);
+     *
+     * // or with options
+     * suite.add('foo', fn, {
+     *   'onCycle': onCycle,
+     *   'onComplete': onComplete
+     * });
+     *
+     * // or name and options
+     * suite.add('foo', {
+     *   'fn': fn,
+     *   'onCycle': onCycle,
+     *   'onComplete': onComplete
+     * });
+     *
+     * // or options only
+     * suite.add({
+     *   'name': 'foo',
+     *   'fn': fn,
+     *   'onCycle': onCycle,
+     *   'onComplete': onComplete
+     * });
+     */
+    function add(name, fn, options) {
+      var suite = this,
+          bench = new Benchmark(name, fn, options),
+          event = Event({ 'type': 'add', 'target': bench });
+
+      if (suite.emit(event), !event.cancelled) {
+        suite.push(bench);
+      }
+      return suite;
+    }
+
+    /**
+     * Creates a new suite with cloned benchmarks.
+     *
+     * @name clone
+     * @memberOf Benchmark.Suite
+     * @param {Object} options Options object to overwrite cloned options.
+     * @returns {Object} The new suite instance.
+     */
+    function cloneSuite(options) {
+      var suite = this,
+          result = new suite.constructor(_.assign({}, suite.options, options));
+
+      // Copy own properties.
+      _.forOwn(suite, function(value, key) {
+        if (!_.has(result, key)) {
+          result[key] = value && _.isFunction(value.clone)
+            ? value.clone()
+            : cloneDeep(value);
+        }
+      });
+      return result;
+    }
+
+    /**
+     * An `Array#filter` like method.
+     *
+     * @name filter
+     * @memberOf Benchmark.Suite
+     * @param {Function|string} callback The function/alias called per iteration.
+     * @returns {Object} A new suite of benchmarks that passed callback filter.
+     */
+    function filterSuite(callback) {
+      var suite = this,
+          result = new suite.constructor(suite.options);
+
+      result.push.apply(result, filter(suite, callback));
+      return result;
+    }
+
+    /**
+     * Resets all benchmarks in the suite.
+     *
+     * @name reset
+     * @memberOf Benchmark.Suite
+     * @returns {Object} The suite instance.
+     */
+    function resetSuite() {
+      var event,
+          suite = this,
+          aborting = calledBy.abortSuite;
+
+      if (suite.running && !aborting) {
+        // No worries, `resetSuite()` is called within `abortSuite()`.
+        calledBy.resetSuite = true;
+        suite.abort();
+        delete calledBy.resetSuite;
+      }
+      // Reset if the state has changed.
+      else if ((suite.aborted || suite.running) &&
+          (suite.emit(event = Event('reset')), !event.cancelled)) {
+        suite.aborted = suite.running = false;
+        if (!aborting) {
+          invoke(suite, 'reset');
+        }
+      }
+      return suite;
+    }
+
+    /**
+     * Runs the suite.
+     *
+     * @name run
+     * @memberOf Benchmark.Suite
+     * @param {Object} [options={}] Options object.
+     * @returns {Object} The suite instance.
+     * @example
+     *
+     * // basic usage
+     * suite.run();
+     *
+     * // or with options
+     * suite.run({ 'async': true, 'queued': true });
+     */
+    function runSuite(options) {
+      var suite = this;
+
+      suite.reset();
+      suite.running = true;
+      options || (options = {});
+
+      invoke(suite, {
+        'name': 'run',
+        'args': options,
+        'queued': options.queued,
+        'onStart': function(event) {
+          suite.emit(event);
+        },
+        'onCycle': function(event) {
+          var bench = event.target;
+          if (bench.error) {
+            suite.emit({ 'type': 'error', 'target': bench });
+          }
+          suite.emit(event);
+          event.aborted = suite.aborted;
+        },
+        'onComplete': function(event) {
+          suite.running = false;
+          suite.emit(event);
+        }
+      });
+      return suite;
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Executes all registered listeners of the specified event type.
+     *
+     * @memberOf Benchmark, Benchmark.Suite
+     * @param {Object|string} type The event type or object.
+     * @param {...*} [args] Arguments to invoke the listener with.
+     * @returns {*} Returns the return value of the last listener executed.
+     */
+    function emit(type) {
+      var listeners,
+          object = this,
+          event = Event(type),
+          events = object.events,
+          args = (arguments[0] = event, arguments);
+
+      event.currentTarget || (event.currentTarget = object);
+      event.target || (event.target = object);
+      delete event.result;
+
+      if (events && (listeners = _.has(events, event.type) && events[event.type])) {
+        _.each(listeners.slice(), function(listener) {
+          if ((event.result = listener.apply(object, args)) === false) {
+            event.cancelled = true;
+          }
+          return !event.aborted;
+        });
+      }
+      return event.result;
+    }
+
+    /**
+     * Returns an array of event listeners for a given type that can be manipulated
+     * to add or remove listeners.
+     *
+     * @memberOf Benchmark, Benchmark.Suite
+     * @param {string} type The event type.
+     * @returns {Array} The listeners array.
+     */
+    function listeners(type) {
+      var object = this,
+          events = object.events || (object.events = {});
+
+      return _.has(events, type) ? events[type] : (events[type] = []);
+    }
+
+    /**
+     * Unregisters a listener for the specified event type(s),
+     * or unregisters all listeners for the specified event type(s),
+     * or unregisters all listeners for all event types.
+     *
+     * @memberOf Benchmark, Benchmark.Suite
+     * @param {string} [type] The event type.
+     * @param {Function} [listener] The function to unregister.
+     * @returns {Object} The current instance.
+     * @example
+     *
+     * // unregister a listener for an event type
+     * bench.off('cycle', listener);
+     *
+     * // unregister a listener for multiple event types
+     * bench.off('start cycle', listener);
+     *
+     * // unregister all listeners for an event type
+     * bench.off('cycle');
+     *
+     * // unregister all listeners for multiple event types
+     * bench.off('start cycle complete');
+     *
+     * // unregister all listeners for all event types
+     * bench.off();
+     */
+    function off(type, listener) {
+      var object = this,
+          events = object.events;
+
+      if (!events) {
+        return object;
+      }
+      _.each(type ? type.split(' ') : events, function(listeners, type) {
+        var index;
+        if (typeof listeners == 'string') {
+          type = listeners;
+          listeners = _.has(events, type) && events[type];
+        }
+        if (listeners) {
+          if (listener) {
+            index = _.indexOf(listeners, listener);
+            if (index > -1) {
+              listeners.splice(index, 1);
+            }
+          } else {
+            listeners.length = 0;
+          }
+        }
+      });
+      return object;
+    }
+
+    /**
+     * Registers a listener for the specified event type(s).
+     *
+     * @memberOf Benchmark, Benchmark.Suite
+     * @param {string} type The event type.
+     * @param {Function} listener The function to register.
+     * @returns {Object} The current instance.
+     * @example
+     *
+     * // register a listener for an event type
+     * bench.on('cycle', listener);
+     *
+     * // register a listener for multiple event types
+     * bench.on('start cycle', listener);
+     */
+    function on(type, listener) {
+      var object = this,
+          events = object.events || (object.events = {});
+
+      _.each(type.split(' '), function(type) {
+        (_.has(events, type)
+          ? events[type]
+          : (events[type] = [])
+        ).push(listener);
+      });
+      return object;
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Aborts the benchmark without recording times.
+     *
+     * @memberOf Benchmark
+     * @returns {Object} The benchmark instance.
+     */
+    function abort() {
+      var event,
+          bench = this,
+          resetting = calledBy.reset;
+
+      if (bench.running) {
+        event = Event('abort');
+        bench.emit(event);
+        if (!event.cancelled || resetting) {
+          // Avoid infinite recursion.
+          calledBy.abort = true;
+          bench.reset();
+          delete calledBy.abort;
+
+          if (support.timeout) {
+            clearTimeout(bench._timerId);
+            delete bench._timerId;
+          }
+          if (!resetting) {
+            bench.aborted = true;
+            bench.running = false;
+          }
+        }
+      }
+      return bench;
+    }
+
+    /**
+     * Creates a new benchmark using the same test and options.
+     *
+     * @memberOf Benchmark
+     * @param {Object} options Options object to overwrite cloned options.
+     * @returns {Object} The new benchmark instance.
+     * @example
+     *
+     * var bizarro = bench.clone({
+     *   'name': 'doppelganger'
+     * });
+     */
+    function clone(options) {
+      var bench = this,
+          result = new bench.constructor(_.assign({}, bench, options));
+
+      // Correct the `options` object.
+      result.options = _.assign({}, cloneDeep(bench.options), cloneDeep(options));
+
+      // Copy own custom properties.
+      _.forOwn(bench, function(value, key) {
+        if (!_.has(result, key)) {
+          result[key] = cloneDeep(value);
+        }
+      });
+
+      return result;
+    }
+
+    /**
+     * Determines if a benchmark is faster than another.
+     *
+     * @memberOf Benchmark
+     * @param {Object} other The benchmark to compare.
+     * @returns {number} Returns `-1` if slower, `1` if faster, and `0` if indeterminate.
+     */
+    function compare(other) {
+      var bench = this;
+
+      // Exit early if comparing the same benchmark.
+      if (bench == other) {
+        return 0;
+      }
+      var critical,
+          zStat,
+          sample1 = bench.stats.sample,
+          sample2 = other.stats.sample,
+          size1 = sample1.length,
+          size2 = sample2.length,
+          maxSize = max(size1, size2),
+          minSize = min(size1, size2),
+          u1 = getU(sample1, sample2),
+          u2 = getU(sample2, sample1),
+          u = min(u1, u2);
+
+      function getScore(xA, sampleB) {
+        return _.reduce(sampleB, function(total, xB) {
+          return total + (xB > xA ? 0 : xB < xA ? 1 : 0.5);
+        }, 0);
+      }
+
+      function getU(sampleA, sampleB) {
+        return _.reduce(sampleA, function(total, xA) {
+          return total + getScore(xA, sampleB);
+        }, 0);
+      }
+
+      function getZ(u) {
+        return (u - ((size1 * size2) / 2)) / sqrt((size1 * size2 * (size1 + size2 + 1)) / 12);
+      }
+      // Reject the null hypothesis the two samples come from the
+      // same population (i.e. have the same median) if...
+      if (size1 + size2 > 30) {
+        // ...the z-stat is greater than 1.96 or less than -1.96
+        // http://www.statisticslectures.com/topics/mannwhitneyu/
+        zStat = getZ(u);
+        return abs(zStat) > 1.96 ? (u == u1 ? 1 : -1) : 0;
+      }
+      // ...the U value is less than or equal the critical U value.
+      critical = maxSize < 5 || minSize < 3 ? 0 : uTable[maxSize][minSize - 3];
+      return u <= critical ? (u == u1 ? 1 : -1) : 0;
+    }
+
+    /**
+     * Reset properties and abort if running.
+     *
+     * @memberOf Benchmark
+     * @returns {Object} The benchmark instance.
+     */
+    function reset() {
+      var bench = this;
+      if (bench.running && !calledBy.abort) {
+        // No worries, `reset()` is called within `abort()`.
+        calledBy.reset = true;
+        bench.abort();
+        delete calledBy.reset;
+        return bench;
+      }
+      var event,
+          index = 0,
+          changes = [],
+          queue = [];
+
+      // A non-recursive solution to check if properties have changed.
+      // For more information see http://www.jslab.dk/articles/non.recursive.preorder.traversal.part4.
+      var data = {
+        'destination': bench,
+        'source': _.assign({}, cloneDeep(bench.constructor.prototype), cloneDeep(bench.options))
+      };
+
+      do {
+        _.forOwn(data.source, function(value, key) {
+          var changed,
+              destination = data.destination,
+              currValue = destination[key];
+
+          // Skip pseudo private properties like `_timerId` which could be a
+          // Java object in environments like RingoJS.
+          if (key.charAt(0) == '_') {
+            return;
+          }
+          if (value && typeof value == 'object') {
+            if (_.isArray(value)) {
+              // Check if an array value has changed to a non-array value.
+              if (!_.isArray(currValue)) {
+                changed = currValue = [];
+              }
+              // Check if an array has changed its length.
+              if (currValue.length != value.length) {
+                changed = currValue = currValue.slice(0, value.length);
+                currValue.length = value.length;
+              }
+            }
+            // Check if an object has changed to a non-object value.
+            else if (!currValue || typeof currValue != 'object') {
+              changed = currValue = {};
+            }
+            // Register a changed object.
+            if (changed) {
+              changes.push({ 'destination': destination, 'key': key, 'value': currValue });
+            }
+            queue.push({ 'destination': currValue, 'source': value });
+          }
+          // Register a changed primitive.
+          else if (value !== currValue && !(value == null || _.isFunction(value))) {
+            changes.push({ 'destination': destination, 'key': key, 'value': value });
+          }
+        });
+      }
+      while ((data = queue[index++]));
+
+      // If changed emit the `reset` event and if it isn't cancelled reset the benchmark.
+      if (changes.length && (bench.emit(event = Event('reset')), !event.cancelled)) {
+        _.each(changes, function(data) {
+          data.destination[data.key] = data.value;
+        });
+      }
+      return bench;
+    }
+
+    /**
+     * Displays relevant benchmark information when coerced to a string.
+     *
+     * @name toString
+     * @memberOf Benchmark
+     * @returns {string} A string representation of the benchmark instance.
+     */
+    function toStringBench() {
+      var bench = this,
+          error = bench.error,
+          hz = bench.hz,
+          id = bench.id,
+          stats = bench.stats,
+          size = stats.sample.length,
+          pm = '\xb1',
+          result = bench.name || (_.isNaN(id) ? id : '<Test #' + id + '>');
+
+      if (error) {
+        result += ': ' + join(error);
+      } else {
+        result += ' x ' + formatNumber(hz.toFixed(hz < 100 ? 2 : 0)) + ' ops/sec ' + pm +
+          stats.rme.toFixed(2) + '% (' + size + ' run' + (size == 1 ? '' : 's') + ' sampled)';
+      }
+      return result;
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Clocks the time taken to execute a test per cycle (secs).
+     *
+     * @private
+     * @param {Object} bench The benchmark instance.
+     * @returns {number} The time taken.
+     */
+    function clock() {
+      var options = Benchmark.options,
+          templateData = {},
+          timers = [{ 'ns': timer.ns, 'res': max(0.0015, getRes('ms')), 'unit': 'ms' }];
+
+      // Lazy define for hi-res timers.
+      clock = function(clone) {
+        var deferred;
+
+        if (clone instanceof Deferred) {
+          deferred = clone;
+          clone = deferred.benchmark;
+        }
+        var bench = clone._original,
+            stringable = isStringable(bench.fn),
+            count = bench.count = clone.count,
+            decompilable = stringable || (support.decompilation && (clone.setup !== _.noop || clone.teardown !== _.noop)),
+            id = bench.id,
+            name = bench.name || (typeof id == 'number' ? '<Test #' + id + '>' : id),
+            result = 0;
+
+        // Init `minTime` if needed.
+        clone.minTime = bench.minTime || (bench.minTime = bench.options.minTime = options.minTime);
+
+        // Compile in setup/teardown functions and the test loop.
+        // Create a new compiled test, instead of using the cached `bench.compiled`,
+        // to avoid potential engine optimizations enabled over the life of the test.
+        var funcBody = deferred
+          ? 'var d#=this,${fnArg}=d#,m#=d#.benchmark._original,f#=m#.fn,su#=m#.setup,td#=m#.teardown;' +
+            // When `deferred.cycles` is `0` then...
+            'if(!d#.cycles){' +
+            // set `deferred.fn`,
+            'd#.fn=function(){var ${fnArg}=d#;if(typeof f#=="function"){try{${fn}\n}catch(e#){f#(d#)}}else{${fn}\n}};' +
+            // set `deferred.teardown`,
+            'd#.teardown=function(){d#.cycles=0;if(typeof td#=="function"){try{${teardown}\n}catch(e#){td#()}}else{${teardown}\n}};' +
+            // execute the benchmark's `setup`,
+            'if(typeof su#=="function"){try{${setup}\n}catch(e#){su#()}}else{${setup}\n};' +
+            // start timer,
+            't#.start(d#);' +
+            // and then execute `deferred.fn` and return a dummy object.
+            '}d#.fn();return{uid:"${uid}"}'
+
+          : 'var r#,s#,m#=this,f#=m#.fn,i#=m#.count,n#=t#.ns;${setup}\n${begin};' +
+            'while(i#--){${fn}\n}${end};${teardown}\nreturn{elapsed:r#,uid:"${uid}"}';
+
+        var compiled = bench.compiled = clone.compiled = createCompiled(bench, decompilable, deferred, funcBody),
+            isEmpty = !(templateData.fn || stringable);
+
+        try {
+          if (isEmpty) {
+            // Firefox may remove dead code from `Function#toString` results.
+            // For more information see http://bugzil.la/536085.
+            throw new Error('The test "' + name + '" is empty. This may be the result of dead code removal.');
+          }
+          else if (!deferred) {
+            // Pretest to determine if compiled code exits early, usually by a
+            // rogue `return` statement, by checking for a return object with the uid.
+            bench.count = 1;
+            compiled = decompilable && (compiled.call(bench, context, timer) || {}).uid == templateData.uid && compiled;
+            bench.count = count;
+          }
+        } catch(e) {
+          compiled = null;
+          clone.error = e || new Error(String(e));
+          bench.count = count;
+        }
+        // Fallback when a test exits early or errors during pretest.
+        if (!compiled && !deferred && !isEmpty) {
+          funcBody = (
+            stringable || (decompilable && !clone.error)
+              ? 'function f#(){${fn}\n}var r#,s#,m#=this,i#=m#.count'
+              : 'var r#,s#,m#=this,f#=m#.fn,i#=m#.count'
+            ) +
+            ',n#=t#.ns;${setup}\n${begin};m#.f#=f#;while(i#--){m#.f#()}${end};' +
+            'delete m#.f#;${teardown}\nreturn{elapsed:r#}';
+
+          compiled = createCompiled(bench, decompilable, deferred, funcBody);
+
+          try {
+            // Pretest one more time to check for errors.
+            bench.count = 1;
+            compiled.call(bench, context, timer);
+            bench.count = count;
+            delete clone.error;
+          }
+          catch(e) {
+            bench.count = count;
+            if (!clone.error) {
+              clone.error = e || new Error(String(e));
+            }
+          }
+        }
+        // If no errors run the full test loop.
+        if (!clone.error) {
+          compiled = bench.compiled = clone.compiled = createCompiled(bench, decompilable, deferred, funcBody);
+          result = compiled.call(deferred || bench, context, timer).elapsed;
+        }
+        return result;
+      };
+
+      /*----------------------------------------------------------------------*/
+
+      /**
+       * Creates a compiled function from the given function `body`.
+       */
+      function createCompiled(bench, decompilable, deferred, body) {
+        var fn = bench.fn,
+            fnArg = deferred ? getFirstArgument(fn) || 'deferred' : '';
+
+        templateData.uid = uid + uidCounter++;
+
+        _.assign(templateData, {
+          'setup': decompilable ? getSource(bench.setup) : interpolate('m#.setup()'),
+          'fn': decompilable ? getSource(fn) : interpolate('m#.fn(' + fnArg + ')'),
+          'fnArg': fnArg,
+          'teardown': decompilable ? getSource(bench.teardown) : interpolate('m#.teardown()')
+        });
+
+        // Use API of chosen timer.
+        if (timer.unit == 'ns') {
+          _.assign(templateData, {
+            'begin': interpolate('s#=n#()'),
+            'end': interpolate('r#=n#(s#);r#=r#[0]+(r#[1]/1e9)')
+          });
+        }
+        else if (timer.unit == 'us') {
+          if (timer.ns.stop) {
+            _.assign(templateData, {
+              'begin': interpolate('s#=n#.start()'),
+              'end': interpolate('r#=n#.microseconds()/1e6')
+            });
+          } else {
+            _.assign(templateData, {
+              'begin': interpolate('s#=n#()'),
+              'end': interpolate('r#=(n#()-s#)/1e6')
+            });
+          }
+        }
+        else if (timer.ns.now) {
+          _.assign(templateData, {
+            'begin': interpolate('s#=n#.now()'),
+            'end': interpolate('r#=(n#.now()-s#)/1e3')
+          });
+        }
+        else {
+          _.assign(templateData, {
+            'begin': interpolate('s#=new n#().getTime()'),
+            'end': interpolate('r#=(new n#().getTime()-s#)/1e3')
+          });
+        }
+        // Define `timer` methods.
+        timer.start = createFunction(
+          interpolate('o#'),
+          interpolate('var n#=this.ns,${begin};o#.elapsed=0;o#.timeStamp=s#')
+        );
+
+        timer.stop = createFunction(
+          interpolate('o#'),
+          interpolate('var n#=this.ns,s#=o#.timeStamp,${end};o#.elapsed=r#')
+        );
+
+        // Create compiled test.
+        return createFunction(
+          interpolate('window,t#'),
+          'var global = window, clearTimeout = global.clearTimeout, setTimeout = global.setTimeout;\n' +
+          interpolate(body)
+        );
+      }
+
+      /**
+       * Gets the current timer's minimum resolution (secs).
+       */
+      function getRes(unit) {
+        var measured,
+            begin,
+            count = 30,
+            divisor = 1e3,
+            ns = timer.ns,
+            sample = [];
+
+        // Get average smallest measurable time.
+        while (count--) {
+          if (unit == 'us') {
+            divisor = 1e6;
+            if (ns.stop) {
+              ns.start();
+              while (!(measured = ns.microseconds())) {}
+            } else {
+              begin = ns();
+              while (!(measured = ns() - begin)) {}
+            }
+          }
+          else if (unit == 'ns') {
+            divisor = 1e9;
+            begin = (begin = ns())[0] + (begin[1] / divisor);
+            while (!(measured = ((measured = ns())[0] + (measured[1] / divisor)) - begin)) {}
+            divisor = 1;
+          }
+          else if (ns.now) {
+            begin = ns.now();
+            while (!(measured = ns.now() - begin)) {}
+          }
+          else {
+            begin = new ns().getTime();
+            while (!(measured = new ns().getTime() - begin)) {}
+          }
+          // Check for broken timers.
+          if (measured > 0) {
+            sample.push(measured);
+          } else {
+            sample.push(Infinity);
+            break;
+          }
+        }
+        // Convert to seconds.
+        return getMean(sample) / divisor;
+      }
+
+      /**
+       * Interpolates a given template string.
+       */
+      function interpolate(string) {
+        // Replaces all occurrences of `#` with a unique number and template tokens with content.
+        return _.template(string.replace(/\#/g, /\d+/.exec(templateData.uid)))(templateData);
+      }
+
+      /*----------------------------------------------------------------------*/
+
+      // Detect Chrome's microsecond timer:
+      // enable benchmarking via the --enable-benchmarking command
+      // line switch in at least Chrome 7 to use chrome.Interval
+      try {
+        if ((timer.ns = new (context.chrome || context.chromium).Interval)) {
+          timers.push({ 'ns': timer.ns, 'res': getRes('us'), 'unit': 'us' });
+        }
+      } catch(e) {}
+
+      // Detect Node.js's nanosecond resolution timer available in Node.js >= 0.8.
+      if (processObject && typeof (timer.ns = processObject.hrtime) == 'function') {
+        timers.push({ 'ns': timer.ns, 'res': getRes('ns'), 'unit': 'ns' });
+      }
+      // Detect Wade Simmons' Node.js `microtime` module.
+      if (microtimeObject && typeof (timer.ns = microtimeObject.now) == 'function') {
+        timers.push({ 'ns': timer.ns,  'res': getRes('us'), 'unit': 'us' });
+      }
+      // Pick timer with highest resolution.
+      timer = _.minBy(timers, 'res');
+
+      // Error if there are no working timers.
+      if (timer.res == Infinity) {
+        throw new Error('Benchmark.js was unable to find a working timer.');
+      }
+      // Resolve time span required to achieve a percent uncertainty of at most 1%.
+      // For more information see http://spiff.rit.edu/classes/phys273/uncert/uncert.html.
+      options.minTime || (options.minTime = max(timer.res / 2 / 0.01, 0.05));
+      return clock.apply(null, arguments);
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Computes stats on benchmark results.
+     *
+     * @private
+     * @param {Object} bench The benchmark instance.
+     * @param {Object} options The options object.
+     */
+    function compute(bench, options) {
+      options || (options = {});
+
+      var async = options.async,
+          elapsed = 0,
+          initCount = bench.initCount,
+          minSamples = bench.minSamples,
+          queue = [],
+          sample = bench.stats.sample;
+
+      /**
+       * Adds a clone to the queue.
+       */
+      function enqueue() {
+        queue.push(bench.clone({
+          '_original': bench,
+          'events': {
+            'abort': [update],
+            'cycle': [update],
+            'error': [update],
+            'start': [update]
+          }
+        }));
+      }
+
+      /**
+       * Updates the clone/original benchmarks to keep their data in sync.
+       */
+      function update(event) {
+        var clone = this,
+            type = event.type;
+
+        if (bench.running) {
+          if (type == 'start') {
+            // Note: `clone.minTime` prop is inited in `clock()`.
+            clone.count = bench.initCount;
+          }
+          else {
+            if (type == 'error') {
+              bench.error = clone.error;
+            }
+            if (type == 'abort') {
+              bench.abort();
+              bench.emit('cycle');
+            } else {
+              event.currentTarget = event.target = bench;
+              bench.emit(event);
+            }
+          }
+        } else if (bench.aborted) {
+          // Clear abort listeners to avoid triggering bench's abort/cycle again.
+          clone.events.abort.length = 0;
+          clone.abort();
+        }
+      }
+
+      /**
+       * Determines if more clones should be queued or if cycling should stop.
+       */
+      function evaluate(event) {
+        var critical,
+            df,
+            mean,
+            moe,
+            rme,
+            sd,
+            sem,
+            variance,
+            clone = event.target,
+            done = bench.aborted,
+            now = _.now(),
+            size = sample.push(clone.times.period),
+            maxedOut = size >= minSamples && (elapsed += now - clone.times.timeStamp) / 1e3 > bench.maxTime,
+            times = bench.times,
+            varOf = function(sum, x) { return sum + pow(x - mean, 2); };
+
+        // Exit early for aborted or unclockable tests.
+        if (done || clone.hz == Infinity) {
+          maxedOut = !(size = sample.length = queue.length = 0);
+        }
+
+        if (!done) {
+          // Compute the sample mean (estimate of the population mean).
+          mean = getMean(sample);
+          // Compute the sample variance (estimate of the population variance).
+          variance = _.reduce(sample, varOf, 0) / (size - 1) || 0;
+          // Compute the sample standard deviation (estimate of the population standard deviation).
+          sd = sqrt(variance);
+          // Compute the standard error of the mean (a.k.a. the standard deviation of the sampling distribution of the sample mean).
+          sem = sd / sqrt(size);
+          // Compute the degrees of freedom.
+          df = size - 1;
+          // Compute the critical value.
+          critical = tTable[Math.round(df) || 1] || tTable.infinity;
+          // Compute the margin of error.
+          moe = sem * critical;
+          // Compute the relative margin of error.
+          rme = (moe / mean) * 100 || 0;
+
+          _.assign(bench.stats, {
+            'deviation': sd,
+            'mean': mean,
+            'moe': moe,
+            'rme': rme,
+            'sem': sem,
+            'variance': variance
+          });
+
+          // Abort the cycle loop when the minimum sample size has been collected
+          // and the elapsed time exceeds the maximum time allowed per benchmark.
+          // We don't count cycle delays toward the max time because delays may be
+          // increased by browsers that clamp timeouts for inactive tabs. For more
+          // information see https://developer.mozilla.org/en/window.setTimeout#Inactive_tabs.
+          if (maxedOut) {
+            // Reset the `initCount` in case the benchmark is rerun.
+            bench.initCount = initCount;
+            bench.running = false;
+            done = true;
+            times.elapsed = (now - times.timeStamp) / 1e3;
+          }
+          if (bench.hz != Infinity) {
+            bench.hz = 1 / mean;
+            times.cycle = mean * bench.count;
+            times.period = mean;
+          }
+        }
+        // If time permits, increase sample size to reduce the margin of error.
+        if (queue.length < 2 && !maxedOut) {
+          enqueue();
+        }
+        // Abort the `invoke` cycle when done.
+        event.aborted = done;
+      }
+
+      // Init queue and begin.
+      enqueue();
+      invoke(queue, {
+        'name': 'run',
+        'args': { 'async': async },
+        'queued': true,
+        'onCycle': evaluate,
+        'onComplete': function() { bench.emit('complete'); }
+      });
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Cycles a benchmark until a run `count` can be established.
+     *
+     * @private
+     * @param {Object} clone The cloned benchmark instance.
+     * @param {Object} options The options object.
+     */
+    function cycle(clone, options) {
+      options || (options = {});
+
+      var deferred;
+      if (clone instanceof Deferred) {
+        deferred = clone;
+        clone = clone.benchmark;
+      }
+      var clocked,
+          cycles,
+          divisor,
+          event,
+          minTime,
+          period,
+          async = options.async,
+          bench = clone._original,
+          count = clone.count,
+          times = clone.times;
+
+      // Continue, if not aborted between cycles.
+      if (clone.running) {
+        // `minTime` is set to `Benchmark.options.minTime` in `clock()`.
+        cycles = ++clone.cycles;
+        clocked = deferred ? deferred.elapsed : clock(clone);
+        minTime = clone.minTime;
+
+        if (cycles > bench.cycles) {
+          bench.cycles = cycles;
+        }
+        if (clone.error) {
+          event = Event('error');
+          event.message = clone.error;
+          clone.emit(event);
+          if (!event.cancelled) {
+            clone.abort();
+          }
+        }
+      }
+      // Continue, if not errored.
+      if (clone.running) {
+        // Compute the time taken to complete last test cycle.
+        bench.times.cycle = times.cycle = clocked;
+        // Compute the seconds per operation.
+        period = bench.times.period = times.period = clocked / count;
+        // Compute the ops per second.
+        bench.hz = clone.hz = 1 / period;
+        // Avoid working our way up to this next time.
+        bench.initCount = clone.initCount = count;
+        // Do we need to do another cycle?
+        clone.running = clocked < minTime;
+
+        if (clone.running) {
+          // Tests may clock at `0` when `initCount` is a small number,
+          // to avoid that we set its count to something a bit higher.
+          if (!clocked && (divisor = divisors[clone.cycles]) != null) {
+            count = floor(4e6 / divisor);
+          }
+          // Calculate how many more iterations it will take to achieve the `minTime`.
+          if (count <= clone.count) {
+            count += Math.ceil((minTime - clocked) / period);
+          }
+          clone.running = count != Infinity;
+        }
+      }
+      // Should we exit early?
+      event = Event('cycle');
+      clone.emit(event);
+      if (event.aborted) {
+        clone.abort();
+      }
+      // Figure out what to do next.
+      if (clone.running) {
+        // Start a new cycle.
+        clone.count = count;
+        if (deferred) {
+          clone.compiled.call(deferred, context, timer);
+        } else if (async) {
+          delay(clone, function() { cycle(clone, options); });
+        } else {
+          cycle(clone);
+        }
+      }
+      else {
+        // Fix TraceMonkey bug associated with clock fallbacks.
+        // For more information see http://bugzil.la/509069.
+        if (support.browser) {
+          runScript(uid + '=1;delete ' + uid);
+        }
+        // We're done.
+        clone.emit('complete');
+      }
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * Runs the benchmark.
+     *
+     * @memberOf Benchmark
+     * @param {Object} [options={}] Options object.
+     * @returns {Object} The benchmark instance.
+     * @example
+     *
+     * // basic usage
+     * bench.run();
+     *
+     * // or with options
+     * bench.run({ 'async': true });
+     */
+    function run(options) {
+      var bench = this,
+          event = Event('start');
+
+      // Set `running` to `false` so `reset()` won't call `abort()`.
+      bench.running = false;
+      bench.reset();
+      bench.running = true;
+
+      bench.count = bench.initCount;
+      bench.times.timeStamp = _.now();
+      bench.emit(event);
+
+      if (!event.cancelled) {
+        options = { 'async': ((options = options && options.async) == null ? bench.async : options) && support.timeout };
+
+        // For clones created within `compute()`.
+        if (bench._original) {
+          if (bench.defer) {
+            Deferred(bench);
+          } else {
+            cycle(bench, options);
+          }
+        }
+        // For original benchmarks.
+        else {
+          compute(bench, options);
+        }
+      }
+      return bench;
+    }
+
+    /*------------------------------------------------------------------------*/
+
+    // Firefox 1 erroneously defines variable and argument names of functions on
+    // the function itself as non-configurable properties with `undefined` values.
+    // The bugginess continues as the `Benchmark` constructor has an argument
+    // named `options` and Firefox 1 will not assign a value to `Benchmark.options`,
+    // making it non-writable in the process, unless it is the first property
+    // assigned by for-in loop of `_.assign()`.
+    _.assign(Benchmark, {
+
+      /**
+       * The default options copied by benchmark instances.
+       *
+       * @static
+       * @memberOf Benchmark
+       * @type Object
+       */
+      'options': {
+
+        /**
+         * A flag to indicate that benchmark cycles will execute asynchronously
+         * by default.
+         *
+         * @memberOf Benchmark.options
+         * @type boolean
+         */
+        'async': false,
+
+        /**
+         * A flag to indicate that the benchmark clock is deferred.
+         *
+         * @memberOf Benchmark.options
+         * @type boolean
+         */
+        'defer': false,
+
+        /**
+         * The delay between test cycles (secs).
+         * @memberOf Benchmark.options
+         * @type number
+         */
+        'delay': 0.005,
+
+        /**
+         * Displayed by `Benchmark#toString` when a `name` is not available
+         * (auto-generated if absent).
+         *
+         * @memberOf Benchmark.options
+         * @type string
+         */
+        'id': undefined,
+
+        /**
+         * The default number of times to execute a test on a benchmark's first cycle.
+         *
+         * @memberOf Benchmark.options
+         * @type number
+         */
+        'initCount': 1,
+
+        /**
+         * The maximum time a benchmark is allowed to run before finishing (secs).
+         *
+         * Note: Cycle delays aren't counted toward the maximum time.
+         *
+         * @memberOf Benchmark.options
+         * @type number
+         */
+        'maxTime': 5,
+
+        /**
+         * The minimum sample size required to perform statistical analysis.
+         *
+         * @memberOf Benchmark.options
+         * @type number
+         */
+        'minSamples': 5,
+
+        /**
+         * The time needed to reduce the percent uncertainty of measurement to 1% (secs).
+         *
+         * @memberOf Benchmark.options
+         * @type number
+         */
+        'minTime': 0,
+
+        /**
+         * The name of the benchmark.
+         *
+         * @memberOf Benchmark.options
+         * @type string
+         */
+        'name': undefined,
+
+        /**
+         * An event listener called when the benchmark is aborted.
+         *
+         * @memberOf Benchmark.options
+         * @type Function
+         */
+        'onAbort': undefined,
+
+        /**
+         * An event listener called when the benchmark completes running.
+         *
+         * @memberOf Benchmark.options
+         * @type Function
+         */
+        'onComplete': undefined,
+
+        /**
+         * An event listener called after each run cycle.
+         *
+         * @memberOf Benchmark.options
+         * @type Function
+         */
+        'onCycle': undefined,
+
+        /**
+         * An event listener called when a test errors.
+         *
+         * @memberOf Benchmark.options
+         * @type Function
+         */
+        'onError': undefined,
+
+        /**
+         * An event listener called when the benchmark is reset.
+         *
+         * @memberOf Benchmark.options
+         * @type Function
+         */
+        'onReset': undefined,
+
+        /**
+         * An event listener called when the benchmark starts running.
+         *
+         * @memberOf Benchmark.options
+         * @type Function
+         */
+        'onStart': undefined
+      },
+
+      /**
+       * Platform object with properties describing things like browser name,
+       * version, and operating system. See [`platform.js`](https://mths.be/platform).
+       *
+       * @static
+       * @memberOf Benchmark
+       * @type Object
+       */
+      'platform': context.platform || require('platform') || ({
+        'description': context.navigator && context.navigator.userAgent || null,
+        'layout': null,
+        'product': null,
+        'name': null,
+        'manufacturer': null,
+        'os': null,
+        'prerelease': null,
+        'version': null,
+        'toString': function() {
+          return this.description || '';
+        }
+      }),
+
+      /**
+       * The semantic version number.
+       *
+       * @static
+       * @memberOf Benchmark
+       * @type string
+       */
+      'version': '2.1.1'
+    });
+
+    _.assign(Benchmark, {
+      'filter': filter,
+      'formatNumber': formatNumber,
+      'invoke': invoke,
+      'join': join,
+      'runInContext': runInContext,
+      'support': support
+    });
+
+    // Add lodash methods to Benchmark.
+    _.each(['each', 'forEach', 'forOwn', 'has', 'indexOf', 'map', 'reduce'], function(methodName) {
+      Benchmark[methodName] = _[methodName];
+    });
+
+    /*------------------------------------------------------------------------*/
+
+    _.assign(Benchmark.prototype, {
+
+      /**
+       * The number of times a test was executed.
+       *
+       * @memberOf Benchmark
+       * @type number
+       */
+      'count': 0,
+
+      /**
+       * The number of cycles performed while benchmarking.
+       *
+       * @memberOf Benchmark
+       * @type number
+       */
+      'cycles': 0,
+
+      /**
+       * The number of executions per second.
+       *
+       * @memberOf Benchmark
+       * @type number
+       */
+      'hz': 0,
+
+      /**
+       * The compiled test function.
+       *
+       * @memberOf Benchmark
+       * @type {Function|string}
+       */
+      'compiled': undefined,
+
+      /**
+       * The error object if the test failed.
+       *
+       * @memberOf Benchmark
+       * @type Object
+       */
+      'error': undefined,
+
+      /**
+       * The test to benchmark.
+       *
+       * @memberOf Benchmark
+       * @type {Function|string}
+       */
+      'fn': undefined,
+
+      /**
+       * A flag to indicate if the benchmark is aborted.
+       *
+       * @memberOf Benchmark
+       * @type boolean
+       */
+      'aborted': false,
+
+      /**
+       * A flag to indicate if the benchmark is running.
+       *
+       * @memberOf Benchmark
+       * @type boolean
+       */
+      'running': false,
+
+      /**
+       * Compiled into the test and executed immediately **before** the test loop.
+       *
+       * @memberOf Benchmark
+       * @type {Function|string}
+       * @example
+       *
+       * // basic usage
+       * var bench = Benchmark({
+       *   'setup': function() {
+       *     var c = this.count,
+       *         element = document.getElementById('container');
+       *     while (c--) {
+       *       element.appendChild(document.createElement('div'));
+       *     }
+       *   },
+       *   'fn': function() {
+       *     element.removeChild(element.lastChild);
+       *   }
+       * });
+       *
+       * // compiles to something like:
+       * var c = this.count,
+       *     element = document.getElementById('container');
+       * while (c--) {
+       *   element.appendChild(document.createElement('div'));
+       * }
+       * var start = new Date;
+       * while (count--) {
+       *   element.removeChild(element.lastChild);
+       * }
+       * var end = new Date - start;
+       *
+       * // or using strings
+       * var bench = Benchmark({
+       *   'setup': '\
+       *     var a = 0;\n\
+       *     (function() {\n\
+       *       (function() {\n\
+       *         (function() {',
+       *   'fn': 'a += 1;',
+       *   'teardown': '\
+       *          }())\n\
+       *        }())\n\
+       *      }())'
+       * });
+       *
+       * // compiles to something like:
+       * var a = 0;
+       * (function() {
+       *   (function() {
+       *     (function() {
+       *       var start = new Date;
+       *       while (count--) {
+       *         a += 1;
+       *       }
+       *       var end = new Date - start;
+       *     }())
+       *   }())
+       * }())
+       */
+      'setup': _.noop,
+
+      /**
+       * Compiled into the test and executed immediately **after** the test loop.
+       *
+       * @memberOf Benchmark
+       * @type {Function|string}
+       */
+      'teardown': _.noop,
+
+      /**
+       * An object of stats including mean, margin or error, and standard deviation.
+       *
+       * @memberOf Benchmark
+       * @type Object
+       */
+      'stats': {
+
+        /**
+         * The margin of error.
+         *
+         * @memberOf Benchmark#stats
+         * @type number
+         */
+        'moe': 0,
+
+        /**
+         * The relative margin of error (expressed as a percentage of the mean).
+         *
+         * @memberOf Benchmark#stats
+         * @type number
+         */
+        'rme': 0,
+
+        /**
+         * The standard error of the mean.
+         *
+         * @memberOf Benchmark#stats
+         * @type number
+         */
+        'sem': 0,
+
+        /**
+         * The sample standard deviation.
+         *
+         * @memberOf Benchmark#stats
+         * @type number
+         */
+        'deviation': 0,
+
+        /**
+         * The sample arithmetic mean (secs).
+         *
+         * @memberOf Benchmark#stats
+         * @type number
+         */
+        'mean': 0,
+
+        /**
+         * The array of sampled periods.
+         *
+         * @memberOf Benchmark#stats
+         * @type Array
+         */
+        'sample': [],
+
+        /**
+         * The sample variance.
+         *
+         * @memberOf Benchmark#stats
+         * @type number
+         */
+        'variance': 0
+      },
+
+      /**
+       * An object of timing data including cycle, elapsed, period, start, and stop.
+       *
+       * @memberOf Benchmark
+       * @type Object
+       */
+      'times': {
+
+        /**
+         * The time taken to complete the last cycle (secs).
+         *
+         * @memberOf Benchmark#times
+         * @type number
+         */
+        'cycle': 0,
+
+        /**
+         * The time taken to complete the benchmark (secs).
+         *
+         * @memberOf Benchmark#times
+         * @type number
+         */
+        'elapsed': 0,
+
+        /**
+         * The time taken to execute the test once (secs).
+         *
+         * @memberOf Benchmark#times
+         * @type number
+         */
+        'period': 0,
+
+        /**
+         * A timestamp of when the benchmark started (ms).
+         *
+         * @memberOf Benchmark#times
+         * @type number
+         */
+        'timeStamp': 0
+      }
+    });
+
+    _.assign(Benchmark.prototype, {
+      'abort': abort,
+      'clone': clone,
+      'compare': compare,
+      'emit': emit,
+      'listeners': listeners,
+      'off': off,
+      'on': on,
+      'reset': reset,
+      'run': run,
+      'toString': toStringBench
+    });
+
+    /*------------------------------------------------------------------------*/
+
+    _.assign(Deferred.prototype, {
+
+      /**
+       * The deferred benchmark instance.
+       *
+       * @memberOf Benchmark.Deferred
+       * @type Object
+       */
+      'benchmark': null,
+
+      /**
+       * The number of deferred cycles performed while benchmarking.
+       *
+       * @memberOf Benchmark.Deferred
+       * @type number
+       */
+      'cycles': 0,
+
+      /**
+       * The time taken to complete the deferred benchmark (secs).
+       *
+       * @memberOf Benchmark.Deferred
+       * @type number
+       */
+      'elapsed': 0,
+
+      /**
+       * A timestamp of when the deferred benchmark started (ms).
+       *
+       * @memberOf Benchmark.Deferred
+       * @type number
+       */
+      'timeStamp': 0
+    });
+
+    _.assign(Deferred.prototype, {
+      'resolve': resolve
+    });
+
+    /*------------------------------------------------------------------------*/
+
+    _.assign(Event.prototype, {
+
+      /**
+       * A flag to indicate if the emitters listener iteration is aborted.
+       *
+       * @memberOf Benchmark.Event
+       * @type boolean
+       */
+      'aborted': false,
+
+      /**
+       * A flag to indicate if the default action is cancelled.
+       *
+       * @memberOf Benchmark.Event
+       * @type boolean
+       */
+      'cancelled': false,
+
+      /**
+       * The object whose listeners are currently being processed.
+       *
+       * @memberOf Benchmark.Event
+       * @type Object
+       */
+      'currentTarget': undefined,
+
+      /**
+       * The return value of the last executed listener.
+       *
+       * @memberOf Benchmark.Event
+       * @type Mixed
+       */
+      'result': undefined,
+
+      /**
+       * The object to which the event was originally emitted.
+       *
+       * @memberOf Benchmark.Event
+       * @type Object
+       */
+      'target': undefined,
+
+      /**
+       * A timestamp of when the event was created (ms).
+       *
+       * @memberOf Benchmark.Event
+       * @type number
+       */
+      'timeStamp': 0,
+
+      /**
+       * The event type.
+       *
+       * @memberOf Benchmark.Event
+       * @type string
+       */
+      'type': ''
+    });
+
+    /*------------------------------------------------------------------------*/
+
+    /**
+     * The default options copied by suite instances.
+     *
+     * @static
+     * @memberOf Benchmark.Suite
+     * @type Object
+     */
+    Suite.options = {
+
+      /**
+       * The name of the suite.
+       *
+       * @memberOf Benchmark.Suite.options
+       * @type string
+       */
+      'name': undefined
+    };
+
+    /*------------------------------------------------------------------------*/
+
+    _.assign(Suite.prototype, {
+
+      /**
+       * The number of benchmarks in the suite.
+       *
+       * @memberOf Benchmark.Suite
+       * @type number
+       */
+      'length': 0,
+
+      /**
+       * A flag to indicate if the suite is aborted.
+       *
+       * @memberOf Benchmark.Suite
+       * @type boolean
+       */
+      'aborted': false,
+
+      /**
+       * A flag to indicate if the suite is running.
+       *
+       * @memberOf Benchmark.Suite
+       * @type boolean
+       */
+      'running': false
+    });
+
+    _.assign(Suite.prototype, {
+      'abort': abortSuite,
+      'add': add,
+      'clone': cloneSuite,
+      'emit': emit,
+      'filter': filterSuite,
+      'join': arrayRef.join,
+      'listeners': listeners,
+      'off': off,
+      'on': on,
+      'pop': arrayRef.pop,
+      'push': push,
+      'reset': resetSuite,
+      'run': runSuite,
+      'reverse': arrayRef.reverse,
+      'shift': shift,
+      'slice': slice,
+      'sort': arrayRef.sort,
+      'splice': arrayRef.splice,
+      'unshift': unshift
+    });
+
+    /*------------------------------------------------------------------------*/
+
+    // Expose Deferred, Event, and Suite.
+    _.assign(Benchmark, {
+      'Deferred': Deferred,
+      'Event': Event,
+      'Suite': Suite
+    });
+
+    /*------------------------------------------------------------------------*/
+
+    // Add lodash methods as Suite methods.
+    _.each(['each', 'forEach', 'indexOf', 'map', 'reduce'], function(methodName) {
+      var func = _[methodName];
+      Suite.prototype[methodName] = function() {
+        var args = [this];
+        push.apply(args, arguments);
+        return func.apply(_, args);
+      };
+    });
+
+    // Avoid array-like object bugs with `Array#shift` and `Array#splice`
+    // in Firefox < 10 and IE < 9.
+    _.each(['pop', 'shift', 'splice'], function(methodName) {
+      var func = arrayRef[methodName];
+
+      Suite.prototype[methodName] = function() {
+        var value = this,
+            result = func.apply(value, arguments);
+
+        if (value.length === 0) {
+          delete value[0];
+        }
+        return result;
+      };
+    });
+
+    // Avoid buggy `Array#unshift` in IE < 8 which doesn't return the new
+    // length of the array.
+    Suite.prototype.unshift = function() {
+      var value = this;
+      unshift.apply(value, arguments);
+      return value.length;
+    };
+
+    return Benchmark;
+  }
+
+  /*--------------------------------------------------------------------------*/
+
+  // Export Benchmark.
+  // Some AMD build optimizers, like r.js, check for condition patterns like the following:
+  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
+    // Define as an anonymous module so, through path mapping, it can be aliased.
+    define(['lodash', 'platform'], function(_, platform) {
+      return runInContext({
+        '_': _,
+        'platform': platform
+      });
+    });
+  }
+  else {
+    var Benchmark = runInContext();
+
+    // Check for `exports` after `define` in case a build optimizer adds an `exports` object.
+    if (freeExports && freeModule) {
+      // Export for Node.js.
+      if (moduleExports) {
+        (freeModule.exports = Benchmark).Benchmark = Benchmark;
+      }
+      // Export for CommonJS support.
+      freeExports.Benchmark = Benchmark;
+    }
+    else {
+      // Export to the global object.
+      root.Benchmark = Benchmark;
+    }
+  }
+}.call(this));