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2betop avatar 2betop commented on July 1, 2024

所有打包阶段的插件都能拿到 map 表,其实也不是 laoder 分析出来的,在打包前就分析出来了, loader 只是基于这些信息,自动把 js 和 css 插入到 html 文本里面。

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haledeng avatar haledeng commented on July 1, 2024

require.resourceMap({
"res": {}, "pkg":{}
});

这个html的依赖的异步js不是loader分析出来的么?

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haledeng avatar haledeng commented on July 1, 2024

另外这里asyncs的文件怎么没有打包了?

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2betop avatar 2betop commented on July 1, 2024

打包分两种:

  1. 用户自己配置什么文件打包到什么文件,可以结合match 设置 packTo 即可。
  2. 完全有 loader 根据页面使用情况分析,把用到的资源 allInOne 打包,这里你提到了异步依赖没有打包的问题,的确默认不是这种模式,可以设置 includeAsyncs 来包含异步依赖部分。

关于以上两种打包方式各有优缺点:

  1. 比较灵活,完全自己控制,可以做到页面与页面之间公用部分独立打包,保障缓存利用率。
  2. 使用简单,但是公用的部分被打包到了每个页面里面。

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haledeng avatar haledeng commented on July 1, 2024
  1. includeAsyncs 这货不是被注释了吗?
  2. 考虑同步资源 allInOne 的同时,资源是否也直接 allInOne?这样开发不需要关注require, require.async打包的问题。在你的pack.js文件里面试着加上下面的语句,是可行了(loader的功能还是很强大的)。但是这里有一个引入的问题,即如何引入这个异步的JS。粗暴的逻辑是:同步js加载完成后,就直接加载异步js(预加载),可以放在html 里面,也可以在同步js中require加载
pack(resource,asyncs, 'pkg/${filepath}_async.js');

个人观点,欢迎指正。

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2betop avatar 2betop commented on July 1, 2024

includeAsyncs 只是个配置项,默认不开启,当然就在源码配置项里面注释掉了。个人认为,如果异步资源比较多,可以考虑开启此功能。

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