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A question in the use of document. write in js _ javascript skills

Source: Internet
Author: User
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This article will show you why I am a newbie if document. write is called after the page is loaded, so I will record it. This answer is shown in Baidu, so it is reprinted.

The following explains how to overwrite the entire document if document. write is called after the page is loaded.

In the prompt, "HTML output" indicates when the page is loaded.

The Code is as follows:





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