Nodejs String Remove removeSubstring(a, b)

Method Source Code

String.prototype.removeSubstring = function(a, b){
   var array = this.split("");
   var w = 0;//  w  w w  . j a  v a2 s .  c om
   var str = [];
   if (b !== undefined){
      array.forEach(function (elm) {
            if (elm === a & w < b){
              w += 1;
            } else {
               str.push(elm);
            }
       });
   } else {
      array.forEach(function (elm) {
            if (elm !== a){
               str.push(elm);
            }
       });
   }

   return str.toString();;

}

//------------------- Testing -----------------------------------//
var str1 = 'aaaaa';
var newStr1 = str1.removeSubstring('a', 3); // newStr = 'a' 
console.log( newStr1 );
var str2 = 'aaabbbbccc'; 
var newStr2 = str2.removeSubstring('b'); // newStr = 'bbbb' 
console.log( newStr2 );
//------------------- Testing -----------------------------------//

Related

1. removeSpace()

   String.prototype.removeSpace=function(){
     return this.replace(/\s/g, "");
   

2. removeSpaces()

   String.prototype.removeSpaces = function() {
     return this.replace(/\s+/g, '');
   };
   String.prototype.hashCode = function(){
     var hash = 0;
       if (this.length == 0) return hash;
       for (var i = 0; i < this.length; i++) {
           char = this.charCodeAt(i);
           hash = ((hash<<5)-hash)+char;
   ...
   

3. removeSpaces()

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

4. removeSpacesAndToLower()

   String.prototype.removeSpacesAndToLower = function () {
     return this.replace(/\s+/g, '-').toLowerCase();
   

5. removeSpecialCharacter()

   String.prototype.removeSpecialCharacter = function(){
     return this.replace(/[^a-zA-Z0-9_]/g, '');
   

6. removeSubstring(a, n)

   String.prototype.removeSubstring = function (a, n) {
     var arr = [];
     arr = str.split('');
     arr.sort();
     console.log("oldStr = '" + str + "'");
     var count = 0;
     for (var i = 0; i < arr.length; i++) {
       if( n != null ) {
         if(arr[i] === a)
   ...
   

7. removeSubstring(arg1, b)

   String.prototype.removeSubstring = function(arg1, b) {
     if (b) {
       var temp = arg1;
       for(var i=1;i<b;i++) {
         arg1 += temp;
     return this.replace(new RegExp(arg1, 'g'), '');
   var str1 = 'aaa';
   var newStr1 = str1.removeSubstring('a', 2);
   console.log(newStr1);
   var str2 = 'aaabbb';
   var newStr2 = str2.removeSubstring('a');
   console.log(newStr2);
   

8. removeSubstring(char,occurance)

   String.prototype.removeSubstring = function(char,occurance) 
     var temp='';
     if(occurance==undefined)
       for (var i = 0; i < this.length; i++) 
         if(char!==this[i])
           temp+=this[i];
     else
       var flag = true;
       var ct=parseInt("0");
       for (var i = 0; i < this.length ; i++) 
         if(char===this[i])
           ct++;
           flag=(ct===parseInt(occurance))?false:true;
         else
           temp+=this[i];
         if(!flag)
           temp+=this.substr(i+1,this.length);
           return temp;
     return temp;
   };
   var str1 = 'aaa';
   console.log(str1.removeSubstring('a', 2)); 
   var str2 = 'aaabbbb'; 
   console.log(str2.removeSubstring('a'));
   

9. removeSubstring(start, length)

   String.prototype.removeSubstring = function(start, length) {
       return this.substr(0, start) + this.substr(start + length);
   };