idempotent-babel-polyfill

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library 7.4.4 ·javascript maintenance
verified Apr 25, 2026

A tiny utility that allows importing babel-polyfill multiple times without causing duplicate initialization errors. Version 7.4.4 is the latest stable release; the package has seen no updates since 2018 and effectively acts as a polyfill wrapper for legacy Babel setups. It provides an idempotent import that checks if core-js or regenerator-runtime has already been loaded, preventing multiple polyfill application which can cause conflicts and performance issues. Unlike directly importing babel-polyfill, this package is safe to include in library code where consumers may also polyfill.

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