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no es.string.reverse in babel-preset-env/corejs3/built-in-definitions #10076

forclan opened this issue Jun 10, 2019 · 1 comment


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commented Jun 10, 2019

Bug Report

Current Behavior
there is a definition(reverse: ["es.string.reverse"]) in babel-preset-env/corejs3/built-in-definitions

Expected behavior/code
it seems that there is no polyfill named String.prototype.reverse, but there should be a Array.prototype.reverse



  • master branch

Possible Solution
change reverse: ["es.string.reverse"], to reverse: ["es.array.reverse"],


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commented Jun 10, 2019

Hey @forclan! 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
that typically always has someone willing to help. You can sign-up here
for an invite.

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