js window resize延时

/*
         * 绑定element resize事件
         * =====================*/
        resize: function(element, callback){
            var delay = 500;        //window resize事件延时500毫秒
            var controlTime = 0;
            $(window, element).resize(function(){
                var nowTime = new Date().getTime();
                if(controlTime){
                    setTimeout(function(){
                        if(nowTime - controlTime > delay){
                            if(typeof callback == 'function'){
                                controlTime = callback();
                            }
                        }
                    }, delay);
                }else{
                    setTimeout(function(){
                        if(typeof callback == 'function'){
                            controlTime = callback();
                        }
                    }, delay);
                    controlTime ++;
                }
            })
        }