Nodejs String Trim trim()

Method Source Code

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

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

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

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

String.prototype.startwith=function(str)
{ 
  return this.substring(0, str.length) == str;
}

String.prototype.endswith=function(str)
{
  return this.substring(this.length - str.length, this.length) == str;
}

// ===========================================================================
Array.prototype.contains = function (item) 
{
  for (var i=0; i<this.length; ++i)
    if (this[i] == item)
      return true;
  return false;/*w  w w .  ja v  a2  s  . c om*/
};

Related

1. trim()

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

2. trim()

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

3. trim()

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

4. trim()

   String.prototype.trim = function() { return this.replace(/^\s+|\s+$/g, ''); }
   function isProbablyUrl(string) {
     var substr = string.substring(0,4).toLowerCase();
     if (substr == 'ftp:' || substr == 'www.') return true;
     var substr = string.substring(0,5).toLowerCase();
     if (substr == 'http:') return true;
     var substr = string.substring(0,6).toLowerCase();
     if (substr == 'https:') return true;
     var substr = string.substring(0,7).toLowerCase();
   ...
   

5. trim()

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

6. trim()

   String.prototype.trim = function() {
     this.replace(/(^\s*)|(\s*$)/gi,'');
     this.replace(/[ ]{2,}/gi,' ');
     this.replace(/\n /,'\n');
     return this;
   };
   

7. trim()

   String.prototype.trim = function(){
     var start,end;
     start=0;
     end=this.length-1;
     while(start<=end && this.charAt(start)==' '){
       start++;
     while(start<=end && this.charAt(end)==" "){
       end--;
   ...
   

8. trim()

   Array.isArray = Array.isArray || function (obj) {
     return toString.call(obj) === '[object Array]';
   };
   String.prototype.trim = String.prototype.trim || function () {
     var str = this.replace(/^\s\s*/, ''),
       i = str.length;
     for (let rgxp = /\s/; rgxp.test(str.charAt(--i));) {}
     return str.substring(0, i + 1);
   };
   ...
   

9. trim()

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