Javascript window.onload vs. body.onload vs. document.onready
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window.onload vs. body.onload vs. document.onready
提问by alter
What is the difference between window.onload, document.onreadyand body.onload?
之间有什么区别window.onload，document.onready和body.onload？
采纳答案by alex
window.onloadwill wait until all assets have finished downloading, such as images and scripts.
window.onload将等到所有资产下载完毕，例如图像和脚本。
DOM ready waits until you can access the DOM via the API.
DOM 就绪等待您可以通过 API 访问 DOM。
As a side note, in this day and age, you ought to be using window.addEventListener('load', function() { }, false)or attachEvent()for older IEs.
作为旁注，在这个时代，您应该使用window.addEventListener('load', function() { }, false)或attachEvent()旧 IE。
