Nodejs String Trim Left trimLeft(charlist = '\s')

Method Source Code

String.prototype.trimLeft = function(charlist = '\s') {
    return this.replace(new RegExp('^[' + charlist + ']+'), '');
};

Related

1. ltrim(ch)

   String.prototype.ltrim = function(ch) {
       var r = new RegExp("^{0}+".format(ch || "\\s"));
       return this.replace(r, "");
   };
   

2. ltrim(charlist)

   String.prototype.ltrim = function (charlist) {
     charlist = !charlist ? ' \\s\u00A0' : (charlist + '').replace(/([\[\]\(\)\.\?\/\*\{\}\+\$\^\:])/g, '$1');
     var re = new RegExp('[' + charlist + ']+$', 'g');
     return this.replace(re, '');
   };
   

3. trimLeft()

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

4. trimLeft()

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

5. trimLeft(character)

   String.prototype.trimLeft = function (character) {
     character = character || ' ';
     return this.replace(new RegExp('^[' + character + ']+'), "");
   };
   

6. lTrim()

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

7. lTrim()

   String.prototype.lTrim = function(){
     str = this;
      var i;
       for(i=0;i<str.length;i++)
           if(str.charAt(i)!=" "&&str.charAt(i)!=" ")break;
       str=str.substring(i,str.length);
       return str;
   ...
   

8. lTrim()

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

9. lTrim()

   String.prototype.lTrim = function () {
     var $whitespace = new String(" \t\n\r");
     if ($whitespace.indexOf(this.charAt(0)) != -1) {
       var $i = this.length;
       var $j = 0;
       while ($j < $i && $whitespace.indexOf(this.charAt($j)) != -1) {
         $j++;
       return this.substring($j, $i);
   ...