< script type = text/javaScript>与< script type = module> [英] <script type=text/javaScript> vs <script type=module>

问题描述

使用< script type = text/javascript> 和< script type = module> 加载HTML中的JavaScript文件有什么区别?

What is the difference between loading JavaScript files in HTML using <script type=text/javascript> and <script type=module>?

推荐答案

HTML5规范不鼓励使用 type = text/javascript :

The HTML5 specification discourages the use of type=text/javascript:

来自 https://www.w3.org/TR/html5/semantics-scripting.html#element-attrdef-script-type :

省略(type)属性或将其设置为JavaScript MIME类型，意味着该脚本是经典脚本，将根据JavaScript Script顶级产品进行解释.经典脚本受字符集，异步和延迟属性的影响.作者应忽略该属性，而不是多余地提供JavaScript MIME类型.

将属性设置为字符串"module"的ASCII不区分大小写的匹配项.表示该脚本是模块脚本，将根据JavaScript Module顶级产品进行解释.模块脚本不受字符集和延迟属性的影响.

Setting the attribute to an ASCII case-insensitive match for the string "module" means that the script is a module script, to be interpreted according to the JavaScript Module top-level production. Module scripts are not affected by the charset and defer attributes.

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