各种浏览器的transitionend事件

function transitionEndEventName () {
            var i,
                    undefined,
                    el = document.createElement('div'),
                    transitions = {
                        'transition':'transitionend',
                        'OTransition':'otransitionend',  // oTransitionEnd in very old Opera
                        'MozTransition':'transitionend',
                        'WebkitTransition':'webkitTransitionEnd'
                    };

            for (i in transitions) {
                if (transitions.hasOwnProperty(i) && el.style[i] !== undefined) {
                    return transitions[i];
                }
            }

            //TODO: throw 'TransitionEnd event is not supported in this browser';
        }
        var transitionEnd = transitionEndEventName();
        jQuery(".target").on(transitionEnd, function() {
            console.log("hehe");
        });