Javascript中的窗口，屏幕和文档有什么区别？ [英] What is the difference between window, screen, and document in Javascript?

问题描述

我认为这些术语可以互换使用，作为DOM的全局环境。有什么区别（如果有的话）我应该在何时使用每一个？

I see these terms used interchangeably as the global environment for the DOM. What is the difference (if there is one) and when should I use each one?

推荐答案

窗口是主要的JavaScript对象根，也就是浏览器中的全局对象，也可以视为文档对象模型的根。您可以在大多数情况下（在浏览器中）以窗口的形式访问它;

Window is the main JavaScript object root, aka the global object in a browser, also can be treated as the root of the document object model. You can access it as window in most of the cases (in the browser);

window.screen 是一个关于物理屏幕尺寸的小信息对象。

window.screen is a small information object about physical screen dimensions.

window.document 或只是 document 是可见（或更好的：渲染）文档对象模型/ DOM的主要对象。

window.document or just document is the main object of the visible (or better yet: rendered) document object model/DOM.

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