Event Delegate 2

gistfile1.js

function delegate(selectorParent, selectorChild, type, fn) {
        var i = selectorParent.length;
        while (i--) {
            selectorParent[i].addEventListener(type, function (e) {

                if ((selectorChild.indexOf(e.target)) >= 0) {


                    console.log("This", e.type, " was clicked!");

                    (function () {
                        fn();
                    })();
                }

            }, false);

        }
    }