window.onload 与 $(document).ready()
JavaScript 的 window.onload 有什么区别 和 jQuery 的 $(document).ready() 方法?
What are the differences between JavaScript's window.onload and jQuery's $(document).ready() method?
推荐答案
ready 事件发生在 HTML 文档加载之后，而 onload 事件发生在后面，当所有内容(例如图像)也已加载时.
The ready event occurs after the HTML document has been loaded, while the onload event occurs later, when all content (e.g. images) also has been loaded.
onload 事件是 DOM 中的标准事件，而 ready 事件是 jQuery 特有的.ready 事件的目的是它应该在文档加载后尽早发生，以便向页面中的元素添加功能的代码不必等待所有内容加载.
The onload event is a standard event in the DOM, while the ready event is specific to jQuery. The purpose of the ready event is that it should occur as early as possible after the document has loaded, so that code that adds functionality to the elements in the page doesn't have to wait for all content to load.
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