Native Array foreach implementation

gistfile1.js

Array.prototype.foreach = function(action) {
    for (var i = 0; i < this.length; i++) {
        action(i, this[i]);           
    }
};

​var arr = [1,2,3,4];

arr.foreach(function(i,item){
   $('#log').append('<p>'+item+'</p>'); 
});
​