Nodejs Utililty Methods String Trim

String.prototype.trim || (String.prototype.trim = function() {
    var str = this.replace(/^\s\s*/, ''),
        ws = /\s/,
        i = str.length;
    while(ws.test(str.charAt(--i)));
    return str.slice(0, i + 1);
});

String.prototype.trim = (function () {
    var trimLeft  = /^\s+/,
        trimRight = /\s+$/;
    return function () {
      return this.replace(trimLeft, "").replace(trimRight, "");
};

String.prototype.trim = function( )
  return( this.replace(new RegExp("^([\\s]+)|([\\s]+)$", "gm"), "") );
};

String.prototype.trim = function( ext )
  var chars = [
    " ", "\t", "\n", "\r"
  ];
  var s = this.copy();
  if( arguments.length > 0 ){
    for( var i in ext ){
      chars.push( ext[i] );
...

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

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

String.prototype.trim = function(){
    return this.replace(/(^[\\s]*)|([\\s]*$)/g, "");

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

String.prototype.trim = function(){
  return this.replace(/^(\s|\u00A0)+/,'').replace(/(\s|\u00A0)+$/,'');   

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