我应该包括type =" text / javascript"在我的SCRIPT标签中？ [英] Should I include type="text/javascript" in my SCRIPT tags?

问题描述

我通过 Crockford的JavaScript最佳实践阅读，他说：

无需使用语言或类型属性。确定MIME类型的是服务器，而不是脚本标记。

There is no need to use the language or type attributes. It is the server, not the script tag, that determines the MIME type.

但我从未见过有人省略在< script> 标记中输入属性...

But I've never seen anyone omit the type attribute in their <script> tag...

你们包括类型吗？为什么（不是）？

Do you guys include type? Why (not)?

推荐答案

你误解了Crockford的意思，他没有说类型属性完全无效，只是它不正确。 JavaScript的MIME类型是 application / javascript （或 application / ecmascript 我现在不记得了。）

You misunderstood what Crockford meant, he didn't say the type attribute is completely invalid, it's just that it's incorrect. The MIME type for JavaScript is application/javascript (or application/ecmascript I can't remember right now).

一般用法是 text / javascript 哪些浏览器会处理没有任何问题，因为那是 defacto 标准很长一段时间。

The general usage though is that is text/javascript which browsers will handle without any problems as that's been the defacto standard for a long time.

关于< script src =...标记它是多余的，因为服务器确定文件的MIME类型，然后浏览器将处理该文件。

In regards to the <script src="..." tag it is redundant because the server determines the MIME type of the file and that is what the browser will then deal with.

他最好在一个文件中解释它他在YUI剧院的视频（ http://developer.yahoo.com/yui/theater/）。我不记得究竟是哪一个谈论这个，我认为它是在高级JavaScript系列中（但是我已经看了几遍，所以它们彼此模糊不清）。

He best explains it in one of his videos on YUI Theater (http://developer.yahoo.com/yui/theater/). I don't remember exactly which one he talks about this, I think it was in the advanced JavaScript series (but yeah I've watched them all a few times so they kind of blur into each other).

因此，如果您想编写有效的XHTML，您需要提供类似 text / javascript 的内容，但这不是官方 JavaScript语言的MIME类型。

So if you want to write valid XHTML you need to provide something like text/javascript but it's not the official MIME type of the JavaScript language.

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