javascript - SRC会覆盖写好的JS吗？

Question

我想我已经明白发生了什么，但我找不到任何相关文档，所以我需要确定:

以 AddThis 为例:

<script type="text/javascript">var addthis_config = {"data_track_addressbar":true};</script>
<script type="text/javascript" src="//s7.addthis.com/js/300/addthis_widget.js#pubid=example"></script>

我想知道为什么不允许将配置脚本放入 src 调用中:

<script type="text/javascript" src="//s7.addthis.com/js/300/addthis_widget.js#pubid=example"> var addthis_config = {"data_track_addressbar":true}; </script>

我的理论是，当调用 src 时，它实际上会覆盖标签之间编写的代码，但官方的推理和行为是什么？

Answer 1

来自:http://www.jsworkshop.com/articles/02scriptsrc.html

The closing tag is required, and you should not use JavaScript commands between the tags.

来自:http://javascript.crockford.com/script.html

The src attribute is optional. If it is present, then its value is a url which identifies a .js file. The loading and processing of the page pauses while the browser fetches, compiles, and executes the file. The content between the <script src="url"> and the </script> should be blank.

If the src attribute is not present, then the content text between the <script> and the </script> is compiled and executed.

没有解释原因，但我的猜测是有效的 src禁用标签之间任何内容的执行。

另外，请参阅此答案:https://stackoverflow.com/a/6528343/637283