Nodejs String Insert insert(text,at)

Method Source Code

// ( 10 ) String.insert()
String.prototype.insert = function(text,at) {
    if(at == null || at > this.length)
        at = this.length;/* w w  w.j  a  v a 2s. c  o m*/
    else if(at < 0)
        at = 0;

    return this.substring(0,at)+text+this.substring(at);
}

Related

1. insert(index, string)

   Object.size = function(obj) {
       var size = 0, key;
       for (key in obj) {
           if (obj.hasOwnProperty(key)) size++;
       return size;
   };
   String.prototype.insert = function (index, string) {
     if (index > 0)
   ...
   

2. insert(index, string)

   String.prototype.insert = function (index, string) {
     if (index > 0) {
       return this.substring(0, index) + string + this.substring(index, this.length);
     else {
       return string + this;
   };
   

3. insert(start, new_string)

   String.prototype.insert = function(start, new_string)
     return this.slice(0, start) + new_string + this.slice(start);
   };
   String.prototype.splice = function(start, length, insert)
     return this.substring(0, start) + insert + this.substring(start + length);
   };
   Object.prototype.extend = function(other)
   ...
   

4. insert(start, new_string)

   String.prototype.insert = function(start, new_string)
     return this.slice(0, start) + new_string + this.slice(start);
   };
   String.prototype.splice = function(start, length, insert)
     return this.substring(0, start) + insert + this.substring(start + length);
   };
   Object.prototype.extend = function(other)
   ...
   

5. insert(start, new_string)

   String.prototype.insert = function(start, new_string)
     return this.slice(0, start) + new_string + this.slice(start);
   };
   String.prototype.splice = function(start, length, insert)
     return this.substring(0, start) + insert + this.substring(start + length);
   };
   

6. insert(value, position)

   String.prototype.insert = String.prototype.insert || function (value, position) {
     if (!value) return this;
     position = position === 'end' ? this.length : position === 'start' ? 0 : position || 0
     return this.slice(0, position) + value + this.slice(position)
   

7. insertAt( loc, strChunk )

   String.prototype.insertAt = function ( loc, strChunk ) {
       return (this.valueOf().substr( 0, loc )) + strChunk + (this.valueOf().substr( loc ))
   };
   

8. insertAt(b,a)

   String.prototype.insertAt=function(b,a){
     return(this.valueOf().substr(0,b))+a+(this.valueOf().substr(b))
   };
   

9. insertAt(idx, rem, text)

   String.prototype.insertAt = function(idx, rem, text){
     return (this.slice(0,idx) + text + this.slice(idx + Math.abs(rem)));
   };