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[ipa1981]

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[ipa1981]

Thanks. Neither shorthands found in the project code as well. Hence it uses Laravel Mix and Webpack, with vast amount of under the hood internal Babel dependencies. We just removed all the babel from direct dependencies to test and it looks no build errors happens so far. Let's hope nothing gets broken :).

[babel-bot]

Hey @ipa1981! We really appreciate you taking the time to report an issue. The collaborators
on this project attempt to help as many people as possible, but we're a limited number of volunteers,
so it's possible this won't be addressed swiftly.

If you need any help, or just have general Babel or JavaScript questions, we have a vibrant Slack
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[JLHwung]

Some of the helper functions we use in Babel's internal processes don't have documentation available. However, you can still check out the source code for @babel/helper-create-regexp-features-plugin here.

To provide some context, the helper serves as a plugin factory for all supported regular expression (regexp) features. If you enable multiple regexp plugins, it ensures that the actual regexp transform runs only once.

That said, docs PR on helpers is welcome.

[ipa1981]

@JLHwung thanks for a quick comment. In my case, I see this helper in package.json, but no imports in the project and thus I have no idea what it does and whether it should be there or it is safe to remove. Thus I was looking for docs to find a clue, what it solves for the user scope, but maybe you can comment?

  "dependencies": {
    "@babel/core": "^7.6.4",
    "@babel/helper-create-regexp-features-plugin": "^7.14.5",
    "@babel/plugin-syntax-dynamic-import": "7.x",
    "@babel/plugin-transform-runtime": "^7.14.3",
    "@babel/runtime": "^7.14.0",

[JLHwung]

@ipa1981 If you are not using this helper, you can safely remove that from your package.json. I guess it was installed so that the helper, as a transitive dependency of regexp plugins, can be upgraded.

[ipa1981]

Thank you. Will try to remove it and see if nothing is broken. It's hard to say if it's used or not. As neither plugin-syntax-dynamic-import and plugin-transform-runtime are imported in the code as well, so maybe it's safe. I'm closing this issue to keep the list clean

[JLHwung]

As neither plugin-syntax-dynamic-import and plugin-transform-runtime are imported in the code as well

Well they are different, Babel config supports shorthand plugin specifier so plugins: ["syntax-dynamic-import"] will also import the plugin. But that is not the case for @babel/helper-*.

As for plugin-syntax-dynamic-import, you can safely remove it if you upgrade @babel/core to 7.8.0 or above.