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Add babel runtime version to transform-runtime plugin to reduce bundle size - #7726
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facebook-github-bot
commented
Sep 24, 2019
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Sep 24, 2019
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I can confirm there are several issues with the version of helpers being used. Our bundle size is very bloated thanks to All research points to this PR being the fix. |
ianschmitz
commented
Oct 5, 2019
@topaxi have you verified that this change shrinks your bundle size? |
topaxi
commented
Oct 6, 2019
Yes, this reduces the filesize of each of our chunks by about 200 bytes after gzip. |
ianschmitz
commented
Oct 6, 2019
Thanks @topaxi! |
@topaxi@ianschmitz Is there a reason we're not doing the same when compiling dependencies here? Just curious. Edit: Nevermind. Looks like @babel/runtime is excluded from dependencies. |
(Reopening due to force-push #7725)
By default, babel assumes babel/helpers version 7.0.0-beta.0, this PR explicitly resolves the helpers to match the provide functions.
See: babel/babel#10261
Looking at the code in babel-plugin-transform-runtime/src/index.js it does not seem to be enough to provide an absolute path to the runtime.