Here you can find the source of Trim()
String.prototype.Trim = function() { return this.lTrim().rTrim(); };
var trim_ = function (str) { return str.replace(/(^\s*)|(\s*$)/g, ""); };
String.prototype.trimfast = function() { var str = this.replace(/^\s\s*/, ''), ws = /\s/, i = this.length; while (ws.test(this.charAt(--i))); return str.slice(0, i + 1); }; (function($){ $.fn.trimval = function() { ...
String.prototype.trim = jCube.String.trim = function () { return this.replace( /^\s+|\s+$|^\n+|\n+$|^\t+|\t+$/g, "");
String.prototype.Trim = function( aimStr ) var str = this; var re = My.RegExp.InvolvedCharsRegExp; var reStart, reEnd; if ( aimStr ) aimStr = aimStr.replace( re, '\\$1' ); reStart = new RegExp( '^(' + aimStr + ')+' ); ...
String.prototype.Trim = function(){ return this.replace(/(^\s*)|(\s*$)/g, ""); };
String.prototype.Trim = function(){ return this.replace(/(^\s*)|(\s*$)/g,""); };
String.prototype.Trim = function() var m = this.match(/^\s*(\S+(\s+\S+)*)\s*$/); return (m == null) ? "" : m[1];
String.prototype.Trim = function(charlist) { return this.lTrim(charlist).rTrim(charlist); };