core_js_11.js

Array.prototype.each = function(callback) {
     for(i = 0; i < this.length; i++) {
          callback.prototype = this[i];
          new callback(i);
     }
};

var test = [ { name : 'a' }, { name : 'b' }, { name : 'c' } ];
test.each(function(index) {
     alert(index + " = " + this.name);
});