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ecmascript-2021

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orassayag / es2021

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A comprehensive demo of features introduced in ECMAScript 2021 (ES12) with practical, runnable examples. Built in 2021–2026, this educational JavaScript project showcases ES2021 features including numeric separators, String.replaceAll(), logical assignment operators, Promise.any(), private class methods, WeakRef, and FinalizationRegistry usage.

nodejs javascript tutorial examples ecmascript replaceall modern-javascript weakref private-methods promise-any es2021 javascript-features es12 logical-assignment-operator ecmascript-2021 numeric-separators finalization-registry
  • Updated Mar 30, 2026
  • JavaScript

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