defer属性异步加载JavaScript 的相关内容

文章 2024-11-04 来自：开发者社区

确定使用 `defer` 属性还是 `async` 属性来异步加载 JavaScript

一、defer 属性和 async 属性的特点 defer 属性：脚本会被异步下载，但会在页面解析完成后按照它们在页面中的出现顺序依次执行。这确保了脚本的执行不会阻塞页面的渲染，并且脚本之间的执行顺序是可预测的。async 属性：脚本会被异步下载并尽快执行，执行顺序可能不固定，与它们在页面中的出现顺序无关。这可能...

文章 2024-11-04 来自：开发者社区

使用 `defer` 属性异步加载 JavaScript

一、defer 属性的基本原理当在 <script> 标签上设置 defer 属性时，浏览器会在解析页面的过程中异步下载该脚本，但不会立即执行，而是会等到页面解析完成后再按照脚本在页面中出现的顺序依次执行。这与 async 属性的立即执行有所不同。二、使用 defer 属性的步骤添加 <script> 标签：在...

阿里云文档 2023-01-09

JS-SDK提供哪些实用的实例属性和方法

在初始化WebOffice文档应用时，aliyun.config方法会返回一个JS-SDK实例，JS-SDK提供了一些实用的实例属性和方法。

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更新时间 2024-11-05 09:14:21

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