将类放在脚本标记上有什么好处？ [英] Is there a benefit to putting a class on a script tag?
问题描述
我遇到了这个代码
<script class="example" type="text/javascript">
并且很好奇，如果有一个好处写入你的代码
and was curious if there is a benefit to writing that into your code
推荐答案
我刚刚对这个标记进行了一个快速测试：
I just ran a quick test with this markup:
<!DOCTYPE html>
<html>
<head>
<style>
.foo {
display: block;
border: 2px solid red;
width: 10px;
height: 10px;
}
</style>
</head>
<body>
<script class="foo" type="text/javascript">
alert("can you see me?");
</script>
after the script
</body>
</html>
结果是屏幕上显示一个红色块，并且在Chrome中运行时脚本标记的内容可见。 IE不显示脚本内容。因此，< script> 可以像任何其他代码一样处理，至少在Chrome中。我认为这是对Chrome的一部分。这是32位Windows 7上的Chrome 10.0.648.204。
The result was a red block on the screen and the contents of the script tag visible when ran in Chrome. IE does not render the script content visibly at all. So <script> can be treated like any other tag, at least in Chrome. I'd argue that's an oversight on Chrome's part. This is Chrome 10.0.648.204 on 32bit Windows 7.
编辑：Firefox 4也渲染同样的东西。
Firefox 4 also renders the same thing.
EDIT2：可能的用例？使用它作为您的网页上的脚本的显示源，以向人们展示它是如何工作的，也许在一个关于JavaScript的博客上？
Possible use case? Use it as a "show source" for script on your page to show people how it works, perhaps on a blog about JavaScript?
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>
</head>
<body>
<script class="foo" type="text/javascript">
function foobar() {
var a = 1;
}
</script>
after the script
<a href="#">show me the script</a>
<script type="text/javascript">
$('a').click(function(event) {
event.preventDefault();
$("<div>").html($(".foo").text()).appendTo($("body"));
});
</script>
</body>
</html>
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