哪个更好：<script type="text/javascript">...</script> 或 <script>...</script>
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Which is better: <script type="text/javascript">...</script> or <script>...</script>
提问by pencilCake
Which is better or more convenient to use:
哪个更好或更方便使用：
<script type="text/javascript">...</script>
or
或者
<script>...</script>
回答by Tim Down
Do you need a type attribute at all? If you're using HTML5, no. Otherwise, yes. HTML 4.01 and XHTML 1.0 specifies the typeattribute as required while HTML5 has it as optional, defaulting to text/javascript. HTML5 is now widely implemented, so if you use the HTML5 doctype, <script>...</script>is valid and a good choice.
你需要一个类型属性吗？如果您使用的是 HTML5，则不会。否则，是的。HTML 4.01 和 XHTML 1.0 将type属性指定为必需属性，而 HTML5 将其作为可选属性，默认为text/javascript. HTML5 现在已被广泛实现，因此如果您使用 HTML5 doctype，<script>...</script>则是有效且不错的选择。
As to what should go in the type attribute, the MIME type application/javascriptregistered in 2006 is intended to replace text/javascriptand is supported by current versions of all the major browsers (including Internet Explorer 9). A quote from the relevant RFC:
至于 type 属性中应该包含的内容application/javascript，2006 年注册的 MIME 类型旨在取代text/javascript所有主要浏览器（包括 Internet Explorer 9）的当前版本并支持。来自相关 RFC 的引用：
This document thus defines text/javascript and text/ecmascript but marks them as "obsolete". Use of experimental and unregistered media types, as listed in part above, is discouraged. The media types,
* application/javascript * application/ecmascriptwhich are also defined in this document, are intended for common use and should be used instead.
因此，本文档定义了 text/javascript 和 text/ecmascript，但将它们标记为“过时”。不鼓励使用上面部分列出的实验性和未注册的媒体类型。媒体类型，
* application/javascript * application/ecmascript本文档中也定义了它们，旨在用于通用用途，应改为使用。
However, IE up to and including version 8 doesn't execute script inside a <script>element with a typeattribute of either application/javascriptor application/ecmascript, so if you need to support old IE, you're stuck with text/javascript.
但是，IE 8 及以上版本不会在具有or属性的<script>元素内执行脚本，因此如果您需要支持旧版 IE，则只能使用.typeapplication/javascriptapplication/ecmascripttext/javascript
回答by Sarfraz
Both will work but xhtml standard requires you to specify the typetoo:
两者都可以工作，但 xhtml 标准要求您也指定type：
<script type="text/javascript">..</script>
<!ELEMENT SCRIPT - - %Script; -- script statements -->
<!ATTLIST SCRIPT
charset %Charset; #IMPLIED -- char encoding of linked resource --
type %ContentType; #REQUIRED -- content type of script language --
src %URI; #IMPLIED -- URI for an external script --
defer (defer) #IMPLIED -- UA may defer execution of script --
>
type = content-type [CI] This attribute specifies the scripting language of the element's contents and overrides the default scripting language. The scripting language is specified as a content type (e.g., "text/javascript"). Authors must supply a value for this attribute. There is no default value for this attribute.
type = content-type [CI] 此属性指定元素内容的脚本语言并覆盖默认脚本语言。脚本语言被指定为内容类型（例如，“text/javascript”）。 作者必须为此属性提供一个值。此属性没有默认值。
Notices the emphasis above.
注意上面的强调。
http://www.w3.org/TR/html4/interact/scripts.html
http://www.w3.org/TR/html4/interact/scripts.html
Note:As of HTML5 (far away), the typeattribute is not required and is default.
注意：从 HTML5（远）开始，该type属性不是必需的并且是默认值。
回答by Sarfraz
You need to use <script type="text/javascript"> </script>unless you're using html5. In that case you are encouraged to prefer <script> ... </script>(because type attribute is specified by default to that value)
您需要使用<script type="text/javascript"> </script>，除非你使用HTML5。在这种情况下，我们鼓励您选择<script> ... </script>（因为 type 属性默认指定为该值）
回答by chovy
This is all that is needed:
这就是所需要的：
<!doctype html>
<script src="/path.js"></script>
回答by pooja
<script type="text/javascript"></script>because its the right way and compatible with all browsers
<script type="text/javascript"></script>因为它是正确的方式并且与所有浏览器兼容
回答by Stephen Elliott
With the latest Firefox, I must use:
使用最新的 Firefox，我必须使用：
<script type="text/javascript">...</script>
Or else the script may not run properly.
否则脚本可能无法正常运行。
