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. javascript built-in: date: tolocaletimestring

  3. javascript built-in: date: tolocaletimestring: iana time zone names in `timezone` option

  4. javascript built-in: date: tolocaletimestring: `locales` parameter

  5. javascript built-in: date: tolocaletimestring: `options` parameter

  6. javascript built-in: map: delete

  7. javascript built-in: proxy: handler: deleteproperty

  8. javascript built-in: reflect: deleteproperty

  9. javascript built-in: set: delete

  10. javascript built-in: weakmap: delete

  11. javascript built-in: weakset: delete

  12. javascript operator: delete

  13. javascript statement: `await using` declaration

  14. javascript statement: import: available in worklets

  15. javascript statement: let

  16. javascript statement: `using` declaration