es-toolkit: JavaScript utility library

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State-of-the-art JavaScript utility library

Best performance

es-toolkit delivers 2-3× better performance in modern JavaScript runtimes compared to other libraries.

Small bundle footprint

es-toolkit ships up to 97% less JavaScript code compared to other alternative libraries.

Modern implementation

es-toolkit fully leverages modern JavaScript APIs for straightforward and error-free implementation.

Robust types

es-toolkit offers simple yet robust types for all functions.

Widely adopted

es-toolkit is trusted and used by popular open-source projects like Storybook, Recharts, ink, and CKEditor.

Battle-tested

es-toolkit has 100% test coverage, ensuring maximum robustness.

Comprehensive runtime support

es-toolkit supports all JavaScript environments, including Node.js, Deno, Bun, and browsers.

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