Mega Code Archive

 
Categories / JavaScript Tutorial / Regular Expressions
 

Trim the leading and trailing spaces

< html> <head> <title>Trim Example</title> <script type="text/javascript">     String.prototype.trim = function () {         var reExtraSpace = /^\s+(.*?)\s+$/;         return this.replace(reExtraSpace, "$1");     };     function showText() {         var oInput1 = document.getElementById("txt1");         var oInput2 = document.getElementById("txt2");         oInput2.value = oInput1.value.trim();     } </script> </head> <body> <textarea rows="10" cols="50" id="txt1"></textarea><br /> <input type="button" value="Trim" onclick="showText()" /></p> <P>Trimmed Text:<br /> <textarea rows="10" cols="50" id="txt2"></textarea></p> </body> </html>