1. ECMAScript 2015 (ES6)

    Support for the ECMAScript 2015 specification. Features include Promises, Modules, Classes, Template Literals, Arrow Functions, Let and Const, Default Parameters, Generators, Destructuring Assignment, Rest & Spread, Map/Set & WeakMap/WeakSet and many more.

  2. audioworkletnode api: `audioworkletnode()` constructor

  3. audioworkletprocessor api: `audioworkletprocessor()` constructor

  4. offlineaudiocompletionevent api: `offlineaudiocompletionevent()` constructor

  5. sharedstoragedeletemethod api: `sharedstoragedeletemethod()` constructor

  6. javascript statement: `await using` declaration

  7. javascript statement: let

  8. javascript statement: `using` declaration