FAQ Topic - How do I trim whitespace - LTRIM/RTRIM/TRIM?

[FAQ server]

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FAQ Topic - How do I trim whitespace - LTRIM/RTRIM/TRIM?
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Using Regular Expressions (JavaScript 1.2/JScript 4+) :

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

or for all versions (trims characters ASCII<32 not true
"whitespace"):

function LTrim(str) {
for (var k=0; k<str.length && str.charAt(k)<=" " ; k++) ;
return str.substring(k,str.length);
}
function RTrim(str) {
for (var j=str.length-1; j>=0 && str.charAt(j)<=" " ; j--) ;
return str.substring(0,j+1);
}
function Trim(str) {
return LTrim(RTrim(str));
}

http://msdn.microsoft.com/library/d...html/2380d458-3366-402b-996c-9363906a7353.asp

http://docs.sun.com/source/816-6408-10/regexp.htm


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[Noah Sussman]

The first two regex functions are both named "lTrim."

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

 

[-Lost]

The first two regex functions are both named "lTrim."

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

Yep. The second "lTrim" should be "rTrim."