How Do I Trim Whitespace - LTRIM/RTRIM/TRIM?

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...363906a7353.asp

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