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RegExp compile()

Syntax regexp.compile(pattern, flag) The compile() method of the RegExp object compiles a regular expression object. The creation of the object takes pattern and flags parameters. The pattern is a valid regular expression. The flags are either or both g (global) and i (ignore case). <html>     <body>     <script language="JavaScript">     <!--       var myPat = new RegExp("dd", "i");     var newPat = myPat.compile(myPat);     function getinfo(){         document.form1.text1.value = newPat;     }     -->     </script>     <form name="form1">     Click the button below to get the pattern for the following     command: new RegExp("dd", "i");     <br><br><br>     Compiled Pattern: <input type="text" name="text1" size=30>     <br><br>     <input type="button" value="Get Pattern" onClick='getinfo()'>     </form>     </body>     </html>