diff options
| -rw-r--r-- | doc/manual/expressions/builtins.xml | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/doc/manual/expressions/builtins.xml b/doc/manual/expressions/builtins.xml index 5fd93c831ed6..6ac802343236 100644 --- a/doc/manual/expressions/builtins.xml +++ b/doc/manual/expressions/builtins.xml @@ -853,7 +853,14 @@ builtins.sort builtins.lessThan [ 483 249 526 147 42 77 ] len</replaceable> lies beyond the end of the string, only the substring up to the end of the string is returned. <replaceable>start</replaceable> must be - non-negative.</para></listitem> + non-negative. For example, + +<programlisting> +builtins.substring 0 3 "nixos" +</programlisting> + + evaluates to <literal>"nix"</literal>. + </para></listitem> </varlistentry> |