Meaning of javascript text between two slashes -

on dreamweaver if write on javascript document text between 2 slashes like

<script type="text/javascript">     /text/ </script>

it becomes green.

what meaning of text? not comment, neither "html text".

thank you

it regular expression litteral.

var patt=new regexp(pattern,modifiers);  or more simply:  var patt=/pattern/modifiers;

and mdn:

regexp(pattern [, flags])  /pattern/flags

Brande