Closed
Description
TypeScript 4.0 beta has been released!
https://devblogs.microsoft.com/typescript/announcing-typescript-4-0-beta/
We need to support new syntaxes:
- Variadic Tuple Types
- Labeled Tuple Elements
- Short-Circuiting Assignment Operators
- This syntax is already supported via Babel (https://babeljs.io/docs/en/next/babel-plugin-proposal-logical-assignment-operators.html)
note: We should wait typescript-eslint/typescript-eslint#2260 for default TS parser and babel/babel#11760 for babel-ts parser.