@babel/plugin-proposal-optional-chaining 7.6.0

on Node.js NPM

v7.6.0 (2019-09-06)

👓 Spec Compliance

• babel-generator, babel-parser
  • #10269 Fix parenthesis for nullish coalescing (@vivek12345)
• babel-helpers, babel-plugin-transform-block-scoping, babel-traverse
  • #9498 Fix tdz checks in transform-block-scoping plugin (@nicolo-ribaudo)

🚀 New Feature

• babel-core
  • #10181 feat(errors): validate preset when filename is absent (@JLHwung)
• babel-helper-create-class-features-plugin, babel-helpers, babel-plugin-proposal-private-methods
  • #10217 Class Private Static Accessors (@tim-mc)
• babel-generator, babel-parser, babel-types
  • #10148 V8intrinsic syntax plugin (@JLHwung)
• babel-preset-typescript
  • #10382 Allow setting 'allowNamespaces' in typescript preset (@dsgkirkby)
• babel-parser
  • #10352 Do not register ambient classes to the TS scope (@nicolo-ribaudo)
• babel-types
  • #10248 Add static to class property builder (@yuri-karadzhov)

🐛 Bug Fix

• babel-helpers, babel-plugin-transform-destructuring, babel-plugin-transform-modules-commonjs, babel-preset-env
  • #10396 fix: early return when instance is not iterable (@JLHwung)
• babel-plugin-transform-runtime
  • #10398 Add supports for polyfill computed methods (@rhyzx)
• babel-preset-env
  • #10397 Don't polyfill when evaluation is not confident (@rhyzx)
  • #10218 [preset-env] Include / exclude module plugins properly (@AdamRamberg)
  • #10284 Replace es.string.reverse with es.array.reverse (@epicfaace)
• babel-plugin-transform-named-capturing-groups-regex
  • #10395 fix: transform name capturing regex once (@JLHwung)
• babel-types
  • #10098 fix typescript for babel-types (@tanhauhau)
  • #10319 Add a builder definition including name for tsTypeParameter (@deificx)
• babel-parser
  • #10380 Refactor trailing comment adjustment (@banga)
  • #10369 Retain trailing comments in array expressions (@banga)
  • #10292 fix: assign trailing comment to ObjectProperty only when inside an ObjectExpression (@JLHwung)
• babel-parser, babel-types
  • #10366 Don't allow JSXNamespacedName to chain (@jridgewell)
• babel-generator, babel-plugin-transform-typescript, babel-types
  • #10341 Add TSBigIntKeyword to @babel/types (@nicolo-ribaudo)
• babel-core, babel-types
  • #9960 Do not delete "fake" source map comments from strings (@nicolo-ribaudo)
• babel-plugin-transform-flow-comments
  • #10329 Fix flow comments plugin issues (@zaygraveyard)
• babel-helpers, babel-plugin-transform-react-constant-elements
  • #10307 [fix] jsx helper calls order (@Sinewyk)
• babel-plugin-proposal-decorators
  • #10302 fix: register inserted class declaration (@thiagoarrais)
• babel-plugin-proposal-do-expressions, babel-traverse
  • #10070 Do expressions transform for switch statements (@tanhauhau)
  • #10277 remove finally from completion record in try statement (@tanhauhau)
• babel-helpers, babel-plugin-transform-named-capturing-groups-regex
  • #10136 fix capturing group for matchAll (@tanhauhau)

💅 Polish

• babel-plugin-transform-runtime, babel-preset-env
  • #10372 Don't allow instance properties transformation on namespace (@rhyzx)

📝 Documentation

• #10313 Adds note about two approval policy to PR template (@thiagoarrais)

🏠 Internal

• babel-register
  • #9847 Remove core-js dependency from @babel/register (@coreyfarrell)
• babel-helper-fixtures, babel-helper-transform-fixture-test-runner, babel-preset-env
  • #10401 Use "validateLogs" for preset-env's debug fixtures (@nicolo-ribaudo)
• babel-parser
  • #10380 Refactor trailing comment adjustment (@banga)
• babel-helper-fixtures, babel-helper-transform-fixture-test-runner, babel-plugin-proposal-dynamic-import, babel-preset-env
  • #10326 Allow testing logs with @babel/helper-transform-fixture-test-runner (@nicolo-ribaudo)
• babel-runtime-corejs2, babel-runtime, babel-types
  • #10331 Commit generated code (@JLHwung)
• babel-cli, babel-core, babel-generator, babel-helper-create-class-features-plugin, babel-helper-fixtures, babel-node, babel-parser, babel-plugin-proposal-do-expressions, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-modules-commonjs, babel-plugin-transform-runtime, babel-preset-env, babel-standalone, babel-template, babel-traverse, babel-types
  • #10228 Update dev dependencies and fix linting errors (@danez)
• babel-cli
  • #10244 added flow to babel cli (@Letladi)

🏃‍♀️ Performance

• babel-helpers, babel-plugin-transform-modules-commonjs, babel-preset-env
  • #10161 Improves the logic to import objects in helpers (@ifsnow)
• babel-traverse
  • #10243 perf: always return void 0 as undefined node (@JLHwung)

Committers: 22

• Adam Ramberg (@AdamRamberg)
• Ajay Sagar (@ajaysagar)
• Ashwin Ramaswami (@epicfaace)
• Bin Xin (@rhyzx)
• Brian Donovan (@eventualbuddha)
• Corey Farrell (@coreyfarrell)
• Daniel Tschinder (@danez)
• Dylan Kirkby (@dsgkirkby)
• Even Alander (@deificx)
• Huáng Jùnliàng (@JLHwung)
• Justin Ridgewell (@jridgewell)
• Letladi Sebesho (@Letladi)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Serge Havas (@Sinewyk)
• Shrey Banga (@banga)
• Tan Li Hau (@tanhauhau)
• Thiago Arrais (@thiagoarrais)
• Tim McClure (@tim-mc)
• Vivek Nayyar (@vivek12345)
• Yuri Karadzhov (@yuri-karadzhov)
• Ziad El Khoury Hanna (@zaygraveyard)
• Sungmin Lee (@ifsnow)