Nodejs Array Insert At insertAt(arg, position)

Method Source Code

//inserts an element at a given position
Array.prototype.insertAt = function(arg, position){
    this.splice(position, 0, arg);//from   w ww. j  ava  2 s  .  c om
};

Related

1. insertAt( index, value )

   Array.prototype.insertAt = function( index, value ) {
     var part1 = this.slice( 0, index );
     var part2 = this.slice( index );
     part1.push( value );
     return( part1.concat( part2 ) );
   };
   

2. insertAt(index, item)

   Array.prototype.insertAt = function(index, item) {
     this.splice(index, 0, item);
     return this;
   };
   

3. insertAt(index,obj)

   Array.prototype.insertAt=function(index,obj){
       this.splice(index,0,obj);
   

4. insertAt(index,obj)

   Array.prototype.insertAt=function(index,obj){
     this.splice(index,0,obj);
   

5. insertAt(o, index)

   Array.prototype.insertAt = function (o, index) {
       if (index > -1 && index <= this.length) {
           this.splice(index, 0, o);
           return true;
       return false;
   };