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@youkuohao/runtime

v0.71.4

Published

Downloads

39

Readme

Wroker Runtime

Get started

npm i

node example

Q&A

为什么生成单独的polyfill文件?

polyfill依赖了一些无法bundle的依赖包,这些依赖包要跟着cli安装。当cli安装在全局目录时, 在工作目录下运行dev依赖到polyfill,便会无法加载到依赖包(除非工作目录也安装了),所以runtime先执行, 再依赖polyfill(获取到全局目录下的路径),此时polyfill便可以依赖到依赖包。

如果polyfill实现零依赖打包,就不需要被抽离出去。

CLI会编译项目代码并让runtime去执行,执行的时候需要注册一些polyfill。 受限于node.js模块加载机制,polyfill注册的时候,依赖到的package需要安装 到项目所在路径。为了避免这个问题,不直接在runtime里注册polyfill,而是 先获取CLI下的polyfill文件路径,再require。这样polyfill依赖的package就 会从CLI路径下加载。

开源

如果开源的话,可以把polyfill/youkuohao分离出来,放到extension的injectScript里。

实际上fetchEvent也应该放到injectScript里。