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Create Trim function in javascript

shankeyshankey

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13 Nov 2010CPOL 21.3K   5   2

You can define a trim function which trims leading and trailing space in JavaScript by using any one of the following ways:

way 1:

String.prototype.trim = function() {  return this.replace(/^\s+|\s+$/g, '');  }

way 2:

function trim()
{
 return this.replace(/^\s+|\s+$/g, ''); 
}

The following function shows how to use the trim function

function temp()
{

 var str='    maninder     ';
 alert(str.trim());
}

You will see 'maninder' in the alert box. All the leading and trailing space are trimmed. :)

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Written By

shankeyshankey

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 India

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Comments and Discussions

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Please rate this if it helped you shankeyshankey2-Nov-10 4:42 shankeyshankey 2-Nov-10 4:42  Please rate this if it helped you \s is whitespace jsc428-Nov-10 22:59 jsc42 8-Nov-10 22:59  The code as given trims all whitespace characters (space, tab, new line, carriage return, form feed, and vertical tab). This is what is normally required. However, if you just wish to trim leading and trailing space characters and keep other whitespace, use a space character instead of the \s character (two locations to be changed).

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