@babel/plugin-transform-flow-comments

@babel/plugin-transform-flow-comments

Turn flow type annotations into comments

See our website @babel/plugin-transform-flow-comments for more information.

Install

Using npm:

npm install --save-dev @babel/plugin-transform-flow-comments

or using yarn:

yarn add @babel/plugin-transform-flow-comments --dev

Changelog

v7.26.5 (2025-01-10)

:eyeglasses: Spec Compliance

• babel-parser
  • #17011 Allow the dynamic import.defer() form of import defer (@babel-bot)

:bug: Bug Fix

• babel-plugin-transform-block-scoped-functions
  • #17024 chore: Avoid calling isInStrictMode in Babel 7 (@liuxingbaoyu)
• babel-plugin-transform-typescript
  • #17026 fix: Correctly generate exported const enums in namespace (@liuxingbaoyu)
• babel-parser
  • #17045 [estree] Unify method type parameters handling (@JLHwung)
  • #17013 fix: Correctly set position for @(a.b)() (@liuxingbaoyu)
  • #16996 [estree] Adjust the start loc of class methods with type params (@nicolo-ribaudo)
• babel-generator, babel-parser, babel-plugin-transform-flow-strip-types, babel-types
  • #17028 Support flow jsx opening element type arguments (@JLHwung)
• babel-compat-data, babel-preset-env
  • #17031 fix: More accurate transform-typeof-symbol compat data (@liuxingbaoyu)
• babel-generator, babel-parser, babel-types
  • #17019 Fix incomplete visitor keys (@JLHwung)

:microscope: Output optimization

• babel-plugin-transform-nullish-coalescing-operator
  • #16612 Improve nullish coalescing operator output (@liuxingbaoyu)