JavaScript - 1 (Version Specifications)

ECMAScript 6 (ES6, ES2015)

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• Class, Object Literal
• Arrow
• Iterator, Generator, For of
• const, let
• destructuring, rest, spread
• Template string
• Symbol, Promise, Map, Set, WeakMap, WeakSet, Proxy, Reflect

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ECMAScript 7 ~ 10, Stage3

7 - 중첩된 rest해체 const

8 - async/await, shared memory, atomics

9 - object 해체, asynchronous iterators

10 - optional catch

11 - BigInt, globalThis, top level await, class field, private field/method, nullish coalescing(??), optional chaning(?.), WeakReference