Nodejs Array Get Last getLastItem()

Method Source Code

Array.prototype.getLastItem = function(){
   return this[this.length - 1];
}


// attach the .equals method to Array's prototype to call it on any array
Array.prototype.equals = function (targetArray) {
    // if the other array is a falsy value, return
    if (!targetArray)
        return false;

    // compare lengths - can save a lot of time 
    if (this.length != targetArray.length)
        return false;

    for (var i = 0, l=this.length; i < l; i++) {
        // Check if we have nested arrays
        if (this[i] instanceof Array && targetArray[i] instanceof Array) {
            // recurse into the nested arrays
            if (!this[i].equals(targetArray[i]))
                return false;       
        }           //from w  ww  .  java2 s. c o  m
        else if (this[i] != targetArray[i]) {
            // Warning - two different object instances will never be equal: {x:20} != {x:20}
            return false;   
        }           
    }       
    return true;
}   //taken from http://stackoverflow.com/questions/7837456/comparing-two-arrays-in-javascript

// set array to equal array properly.
Array.prototype.setTo = function (targetArray) {
    // if the other array is a falsy value, return
    if (!targetArray || targetArray.length < 1)
        return false;
        
    if(this.length != size)
    {
       for(var i = 0; i < size; i++)
   {
      this.push([]);
   }
    }
    
    for (var i = 0; i < size; i++) {
        for(var j = 0; j < size; j++)
        {
            this[i][j] = targetArray[i][j];
        }
    }       
    return this;
}

Related

1. getLastElement()

   Array.prototype.getLastElement = function() {
     return this[this.length - 1];
   };
   

2. getLastIndexByKey(name)

   Array.prototype.getLastIndexByKey = function(name) {
     var index = -1;
     for (var i = 0; i < this.length; i++) {
       if (this[i][name]) {
         index = i;
     return index;