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第485天 css加载会阻塞js运行吗?
3+1官网
我也要出题
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总结上面的文章: 1.css加载会阻塞后面js的运行 2.css加载不会阻塞DOM的解析,但是会阻塞DOM的渲染 --> 考虑到css可能会修改DOM的样式,从而引起回流或重绘,所以先加载完css,再对DOM进行渲染,减少不必要的性能损耗 3.提高css加载速度的方式:
CDN 压缩css文件 合理使用缓存 合并css文件
1.css加载不会阻塞Dom的解析 2.css加载会阻塞Dom的渲染 3.css加载会阻塞后面js的运行 优化: 1.使用cdn 2.压缩css文件,合并css文件 3.合理使用缓存 4.如果样式少的话使用内联,内联做不到的就是缓存
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第485天 css加载会阻塞js运行吗?
3+1官网
我也要出题
The text was updated successfully, but these errors were encountered: