Nodejs String Sub String from Left left(count)

Method Source Code

String.prototype.left = function(count) {
    if (count >= this.length) {
        return this.toString();
    }else {//  w  w w.ja va 2  s.co  m
        return this.slice(0, count);
    }
};

Related

1. left(cnt)

   if(!String.prototype.left){
     String.prototype.left = function(cnt){
       return this.substr(0,cnt);
     };
   if(!String.prototype.right){
     String.prototype.right = function(cnt){
       return this.substr(this.length - cnt,this.length);
     };
   ...
   

2. left(count)

   String.prototype.left = function (count) {
       return this.substring(0, count);
   

3. left(count)

   String.prototype.left = function(count) {
       var result = "";
       var stringLength = this.length;
       if (count > stringLength) {
           count = stringLength;
       var i;
       for (i = 0; i < count; i += 1) {
           result += this[i];
   ...
   

4. left(count)

   String.prototype.left = function(count) {
       if (count > this.length) return this.toString();
       return this.substring(0, count);
   };
   

5. left(i)

   String.prototype.left = function(i)
       if (this.length > i) return this.substr(0, i) + "...";
       return this;
   };