Nodejs String Trim trim || (String.prototype.trim()

Method Source Code

String.prototype.trim || (String.prototype.trim = function() {
    var str = this.replace(/^\s\s*/, ''),
        ws = /\s/,/* w w w .  ja v a 2 s. c  o  m*/
        i = str.length;

    while(ws.test(str.charAt(--i)));

    return str.slice(0, i + 1);
});

Related

1. trim()

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

2. trim( )

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

3. trim( ext )

   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] );
   ...
   

4. trim(()

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