Extending Array Object

Below is a sample on how to extends an array object.

Array.prototype.getMinValue = function(){
    var minIndex = 0;
    for(i=1;i<this.length;i++){
        if(this[i]<this[minIndex]){
            minIndex = i;
        }
    }
    return this[minIndex]
}

You can call the above method by:

var data = [5,4,8,3,1,6];

alert(data.getMinValue());

output>> 1

       

Extending Array Object