Object.entries

Rare Earth Juejin Tech Community

Feb 5, 2024 · Frontend Development

Lesser‑Known but Useful ES6 Features and Techniques

This article introduces several relatively obscure yet practical ES6 features—including Object.entries/Object.fromEntries, Symbol, WeakMap/WeakSet, Promise.allSettled, BigInt, Array.of/Array.from, and the .at and flat methods—explaining their purpose and providing code examples for each.