Includes polyfills for ecmascript up to 2025 Includes polyfills for ecmascript up to 2023 Includes polyfills for ecmascript 5, ecmascript 6 Promises, symbols, collections, iterators, typed arrays, ecmascript 7+ proposals, setimmediate, etc Some additional features such as dictionaries or extended partial application. Includes polyfills for ecmascript up to 2019
Includes polyfills for ecmascript up to 2021
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