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Core Js

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core-js is a modular standard library for JavaScript providing polyfills for ECMAScript (up to 2025), ECMAScript proposals, and some cross-platform WHATWG/W3C features. It lets developers import only the features they need for cross-browser compatibility and can be integrated with build tools like Babel and SWC.

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Frequently asked questions

What does Core Js do?
core-js is a modular standard library for JavaScript providing polyfills for ECMAScript (up to 2025), ECMAScript proposals, and some cross-platform WHATWG/W3C features. It lets developers import only the features they need for cross-browser compatibility and can be integrated with build tools like Babel and SWC.
Who are Core Js's investors?
Core Js's investors include Prospective Technologies.