Nodejs String Trim trim()

Method Source Code

// Example: Augmenting Types
// JavaScript allows us to augment the basic types of the language.

console.log("'" + " a ".trim() + "'");

String.prototype.trim = function(){
   return this.replace(/^\s+|\s+$/g, '');
};    //from w ww.j a v  a2s  .  co m

console.log("'" + " b ".trim() + "'");

// Because of the dynamic nature of JavaScript's prototypal inheritance, all 
// objects/values are imediatly endowed with the new methods, even objects/values
// that where created before the new methods where created.

Related

1. trim()

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

2. trim()

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

3. trim()

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

4. trim()

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

5. trim()

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

6. trim()

   String.prototype.trim = function()
     var x=this;
     x=x.replace(/^\s*(.*)/, "$1");
     x=x.replace(/(.*?)\s*$/, "$1");
     return x;
   

7. trim()

   var Firefox = (document.getElementById && !document.all);
   var MSIE = (-1 != navigator.userAgent.indexOf('MSIE'));
   String.prototype.trim=function(){
     return this.replace(/^\s+|\s+$/g,"");
   };
   function Redirect(url)
     parent.location=url;
   var Submitted = 0;
   function OnSubmit(form)
     if (Submitted) {
       return false;
     Submitted = 1;
     return true;
   

8. trim()

   String.prototype.trim = function(){ 
     return this.rTrim(this.lTrim());
   

9. trim()

   String.prototype.trim = String.prototype.trim || function () {
     const
       str = this.replace(/^\s\s*/, '');
     let
       i = str.length;
     for (let rgxp = /\s/; rgxp.test(str.charAt(--i));) {
     return str.substring(0, i + 1);
   };
   ...