@babel/preset-typescript 7.16.5

on Node.js NPM

v7.16.5 (2021-12-13)

Thanks @chimurai and @krosenberg for your first PRs!

👓 Spec Compliance

• babel-cli, babel-core, babel-helpers, babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-jscript, babel-plugin-transform-parameters, babel-plugin-transform-runtime, babel-plugin-transform-spread, babel-plugin-transform-typescript, babel-preset-env
  • #12115 Mark class prototype as read-only (@wentout)

🐛 Bug Fix

• babel-plugin-transform-parameters
  • #14032 Fix: default rest argument array elements as undefined (@The-x-Theorist)
• babel-plugin-transform-arrow-functions, babel-traverse
  • #14036 Don't resolve shadowed arguments variables from functions (@The-x-Theorist)
• babel-parser
  • #14039 maintain estree string literal shape when cloned (@JLHwung)
• babel-traverse
  • #14016 Fix duplicate declaration error on ambient class declarations (@The-x-Theorist)
• babel-generator
  • #14014 Support flow function type annotation with no parent (@krosenberg)
• babel-plugin-transform-react-jsx
  • #14012 Fix JSX pragma anywhere in comment (@The-x-Theorist)
• babel-helper-create-class-features-plugin, babel-helper-environment-visitor, babel-helper-member-expression-to-functions, babel-helper-module-transforms, babel-helper-replace-supers, babel-plugin-transform-classes, babel-traverse
  • #14005 Fix handling of this&co in computed keys in arrows transform (@nicolo-ribaudo)

💅 Polish

• babel-parser
  • #13968 Recover from shorthand assign exprs (@JLHwung)
  • #13975 fix: update UnexpectedPrivateField error message (@JLHwung)

📝 Documentation

• Many packages
  • #14006 Regenerate monorepo READMEs (@nicolo-ribaudo)

🏠 Internal

• Every package
  • #13966 Run tests in a native Node.js ESM environment (@nicolo-ribaudo)
• babel-parser
  • #13982 Extend hasPlugin to accept plugin-configuration array pairs (@js-choi)
• babel-helpers
  • #13996 Don't use ESM for required files in @babel/helpers tests (@nicolo-ribaudo)
• babel-plugin-proposal-object-rest-spread, babel-traverse
  • #13948 Convert proposal-object-rest-spread to TS (@JLHwung)
• babel-parser, babel-plugin-bugfix-safari-id-destructuring-collision-in-function-expression, babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-optional-chaining, babel-preset-react, babel-preset-typescript
  • #13978 Only bundle the release build, and don't import src in tests (@nicolo-ribaudo)
• Other
  • #13976 Fail CI when @babel/runtime ESM tests fail (@nicolo-ribaudo)

🏃‍♀️ Performance

• babel-parser
  • #13919 Improve template tokenizing (@JLHwung)

🔬 Output optimization

• babel-helpers, babel-plugin-proposal-async-generator-functions, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime
  • #13837 minify helpers-generated.ts (@lightmare)

Committers: 10

• Babel Bot (@babel-bot)
• Bogdan Savluk (@zxbodya)
• Huáng Jùnliàng (@JLHwung)
• J. S. Choi (@js-choi)
• Kyle Rosenberg (@krosenberg)
• Mickey Rose (@lightmare)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Sneh Khatri (@The-x-Theorist)
• @chimurai
• wentout (@wentout)