但JS原生API写法依旧;并且有时候只不过小写一个Demo,或者产品中只有少量的前端效果或DOM操作,就去花时间&空间引入jQuery,或者React?不免有取宰牛之刀以杀鸡之嫌。...故此了解下JS常用原生写法还是蛮有必要的。...之时才去做初始化)//
var BindEvent = function (dom, event, handle, ex) {
if ('addEventListener' in document)...{
BindEvent = function (dom, event, handle, ex) {
dom.addEventListener(event, handle, ex |...= function (dom, event, handle) {
dom['on' + event] = handle;
}
}
BindEvent(dom, event