javascript - 最佳 DOMContentLoaded 回退

Question

回退

document.addEventListener('DOMContentLoaded',function(){/*code here*/})

Answer 1

来自 MDN :

Internet Explorer 8 supports the readystatechange event, which can be used to detect that the DOM is ready. In earlier version of Internet Explorer, this state can be detected by regularily trying to execute document.documentElement.doScroll("left"), as this snippet will throw an error until the DOM is ready.