npm · #999 most downloaded on npm

@babel/plugin-transform-for-of

8.0.1babel/babel ↗New releases in your daily digest, changelog included.

Compile ES2015 for...of to ES5

Last release 3 months ago
17 Jun 2026
Ships fairly regularly
a new release about every 4 weeks
Most releases are documented
notes for 37 of 42 stable releases
Nothing withdrawn
no release was ever pulled
9 years old
109 releases · first in 2017

Release timeline

109 releases since 2017

20172019202120232025

Releases

7.12.133 Feb 2021
Thanks @bradzacher, @bz2, @ChALkeR, @FauxFaux, @fedeci, @karansapolia, @panzarino, @shrinktofit, and @Zalathar for your first PRs!
v7.12.13 (2021-02-03)

Thanks @bradzacher, @bz2, @ChALkeR, @FauxFaux, @fedeci, @karansapolia, @panzarino, @shrinktofit, and @Zalathar for your first PRs!

:eyeglasses: Spec Compliance

babel-parser

#12661 spec: disable await binding identifier within static block (@JLHwung)

babel-helper-create-class-features-plugin, babel-helpers, babel-plugin-proposal-private-methods, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime

#12689 fix: throw error when accessing private method without a getter (@fedeci)

babel-plugin-transform-computed-properties, babel-plugin-transform-shorthand-properties

#12664 fix: correctly transform __proto__ properties (@ExE-Boss)

:bug: Bug Fix

babel-plugin-proposal-class-properties, babel-traverse

#12729 Fix class fields when super() is in a default param (@nicolo-ribaudo)

babel-plugin-proposal-class-properties, babel-plugin-transform-classes

#12723 Define class elements in the correct order (@nicolo-ribaudo)

babel-parser, babel-template

#12725 Permit %%placeholder%% in left-hand-side of a let declaration (@Zalathar)

babel-core, babel-helper-transform-fixture-test-runner, babel-register

#12728 Don't use require() in ESM files (@nicolo-ribaudo)

babel-parser

#12686 (ts) Raise syntax error for an abstract method in non-abstract class (@sosukesuzuki)

#12684 fix(parser): throw error with wrong typescript 'export declare' (@fedeci)

#12520 Raise recoverable error for await expressions in sync functions (@sosukesuzuki)

#12678 fix: start TypePredicate node after returnToken (@JLHwung)

#12599 @babel/preset-typescript: fix tsx assigment issue (@Zzzen)

#12562 [ts]Add optional property to OptionalCallExpression node that has type arguments (@sosukesuzuki)

babel-helpers, babel-plugin-transform-classes

#12693 Avoid hitting __proto__ in _inheritsLoose (@ChALkeR)

babel-generator

#12653 fix: avoid line breaks between class members head and key (@JLHwung)

babel-register

#12665 fix: babel-register transform internal dependencies (@overlookmotel)

babel-node

#12638 fix: place _babel-node after process.execArgv (@JLHwung)

babel-types

#12602 fix: cloneNode(deep, withoutLoc) handles absent comments (@FauxFaux)

#12575 Use isIdentifierChar instead of regex for toIdentifier (@mischnic)

babel-plugin-transform-modules-systemjs

#12612 [systemjs] Fix: export star alongside with named export (@shrinktofit)

babel-plugin-transform-for-of

#12611 Transform labeled for-of inside braceless if statement (@nicolo-ribaudo)

babel-helper-create-class-features-plugin, babel-helper-replace-supers, babel-plugin-transform-classes

#12544 Correctly access shadowed class binding in super.* (@Zzzen)

babel-helper-module-imports, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx

#12546 Load jsx-runtime after existing imports (@nicolo-ribaudo)

:nail_care: Polish

babel-helper-transform-fixture-test-runner, babel-parser, babel-preset-env

#12716 refactor: raise AwaitNotInAsyncContext when an AwaitExpression will be parsed (@JLHwung)

babel-cli, babel-core, babel-parser

#12437 Recover from "missing semicolon" errors (@nicolo-ribaudo)

babel-helper-create-class-features-plugin, babel-plugin-proposal-private-methods

#12713 Add # to the private name in "write-only" errors (@nicolo-ribaudo)

babel-helper-compilation-targets, babel-preset-env

#12626 fix: print warning messages to stderr (@JLHwung)

babel-code-frame

#12567 fix(code-frame): do not pad gutter of empty lines (@SimenB)

:memo: Documentation

Other

#12698 Add " 📢 Deprecation" to the changelog labels (@nicolo-ribaudo)

Every package

#12531 docs: add package-specific documentation links (@DanArthurGallagher)

:house: Internal

babel-traverse, babel-types

#12296 Use native ESM for dev scripts (@karansapolia)

babel-register

#12674 babel-register run default register with global module cache (@overlookmotel)

Other

#12659 Add yarn-plugin-conditions to update Babel 8 dependencies (@nicolo-ribaudo)

#12640 test: reuse lodash library within eslint tests (@armano2)

#12592 Remove remaining references to lerna (@nicolo-ribaudo)

babel-generator, babel-preset-env

#12670 fix: allow to execute util scripts (@armano2)

babel-core, babel-helper-compilation-targets, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-parameters, babel-plugin-transform-regenerator, babel-preset-env

#12615 Tweak helper compilation targets (@JLHwung)

:microscope: Output optimization

babel-plugin-transform-modules-commonjs, babel-plugin-transform-template-literals, babel-plugin-transform-unicode-escapes, babel-preset-env

#12588 Declare template objects inline (@nicolo-ribaudo)

babel-plugin-transform-react-jsx

#12557 Optimize jsx spreads of object expressions (@bz2)

Committers: 22

Armano (@armano2)

Babel Bot (@babel-bot)

Bogdan Savluk (@zxbodya)

Brian Ng (@existentialism)

Chris West (@FauxFaux)

Daniel Arthur Gallagher (@DanArthurGallagher)

ExE Boss (@ExE-Boss)

Federico Ciardi (@fedeci)

Henry Zhu (@hzoo)

Huáng Jùnliàng (@JLHwung)

Karan Sapolia (@karansapolia)

Leslie Leigh (李的序) (@shrinktofit)

Martin Packman (@bz2)

Nicolò Ribaudo (@nicolo-ribaudo)

Niklas Mischkulnig (@mischnic)

Simen Bekkhus (@SimenB)

Sosuke Suzuki (@sosukesuzuki)

Stuart Cook (@Zalathar)

Zach Panzarino (@panzarino)

Zen (@Zzzen)

@overlookmotel

Сковорода Никита Андреевич (@ChALkeR)

7.12.115 Oct 2020

babel-plugin-transform-runtime, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime

v7.12.1 (2020-10-16)

:bug: Bug Fix

babel-cli
- #12182 Don't force chokidar@2 to be downloaded from registry.npmjs.org (@nicolo-ribaudo)
babel-plugin-transform-runtime, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
- #12184 Allow importing @babel/runtime/package (@nicolo-ribaudo)
babel-parser
- #12183 Reland "Fix: check if param is assignable when parsing arrow return type annotation" (@nicolo-ribaudo)

:house: Internal

Other
- #12188 Guard against yarn-issue-1882 (@JLHwung)
Every package
- #12186 chore: use workspace:* for dev deps (@JLHwung)
babel-compat-data, babel-helper-compilation-targets, babel-helper-create-class-features-plugin, babel-helper-remap-async-to-generator, babel-helper-simple-access, babel-helper-transform-fixture-test-runner, babel-plugin-transform-named-capturing-groups-regex, babel-plugin-transform-object-assign, babel-plugin-transform-parameters, babel-plugin-transform-react-jsx-self, babel-plugin-transform-react-jsx-source, babel-plugin-transform-template-literals, babel-preset-env, babel-preset-react, babel-runtime-corejs2, babel-runtime, babel-standalone
- #12175 Remove unused dependencies and devDependencies (@nicolo-ribaudo)

Committers: 2

Huáng Jùnliàng (@JLHwung)
Nicolò Ribaudo (@nicolo-ribaudo)

Open source →

7.10.430 Jun 2020

Thanks @penguingovernor, @sajadtorkamani and @wojtekmaj for their first PRs!

v7.10.4 (2020-06-30)

Thanks @penguingovernor, @sajadtorkamani and @wojtekmaj for their first PRs!

:eyeglasses: Spec Compliance

babel-helper-member-expression-to-functions, babel-plugin-proposal-class-properties
- #11669 Add delete obj?.#x.a support (@JLHwung)
babel-parser, babel-types
- #11652 fix: implement early errors for record and tuple (@JLHwung)

:bug: Bug Fix

babel-types
- #11752 [regression] Don't validate file.comments in @babel/types (@nicolo-ribaudo)
babel-plugin-proposal-do-expressions, babel-types
- #11724 fix: do-statementlist behavior (@wlawt)

:nail_care: Polish

babel-parser
- #11722 Add better parser error when using jsx (@penguingovernor)
babel-core
- #11544 Refine babel core types (@JLHwung)

:house: Internal

babel-core, babel-helper-fixtures, babel-standalone, babel-traverse
- #11758 Replace non-inclusive "whitelist" and "blacklist" terms with "allowlist" etc. (@wojtekmaj)
babel-parser
- #11376 Add @babel/eslint-plugin-development-internal (@kaicataldo)
babel-core
- #11544 Refine babel core types (@JLHwung)

Committers: 7

Huáng Jùnliàng (@JLHwung)
Jorge Henriquez (@penguingovernor)
Kai Cataldo (@kaicataldo)
Nicolò Ribaudo (@nicolo-ribaudo)
Simon Kotwicz (@simonkotwicz)
William Law (@wlawt)
Wojciech Maj (@wojtekmaj)

Open source →

7.10.026 May 2020

Thanks @AndrewLeedham, @fisker, @kik-o, @kitos, @lazytype for their first PRs!

v7.10.0 (2020-05-26)

Thanks @AndrewLeedham, @fisker, @kik-o, @kitos, @lazytype for their first PRs!

We are also releasing the first experimental version of the new polyfills plugins: you can check them out at babel/babel-polyfills.

:eyeglasses: Spec Compliance

babel-plugin-proposal-logical-assignment-operators
- #11370 logical-assignment: Do not assign names to anonymous functions (@arku)

:rocket: New Feature

babel-helper-create-class-features-plugin, babel-helper-member-expression-to-functions, babel-helper-optimise-call-expression, babel-helper-replace-supers, babel-parser, babel-plugin-proposal-class-properties
- #11248 Handle private access chained on an optional chain (@jridgewell)
babel-standalone
- #11593 feat: add privatePropertyInObject to babel-standalone (@JLHwung)
- #11466 Support data-type="module" to generate native <script type="module"> (@dfabulich)
babel-cli, babel-helper-create-class-features-plugin, babel-parser, babel-plugin-proposal-private-property-in-object, babel-types
- #11372 Add private-property-in-object support (@jridgewell)
babel-compat-data, babel-plugin-transform-template-literals, babel-plugin-transform-unicode-escapes, babel-preset-env, babel-standalone
- #11377 Transform ES2015 Unicode Escapes to ES5 (@jridgewell)
babel-parser, babel-plugin-syntax-module-attributes, babel-standalone
- #10962 added basic support for module attributes and tests updated (@vivek12345)
babel-helper-compilation-targets, babel-preset-env
- #11434 [preset-env] Add browserslistEnv option (@AndrewLeedham)
babel-cli
- #11220 Log after subsequent compilations in --watch mode (@nicolo-ribaudo)
babel-helpers, babel-plugin-transform-destructuring, babel-plugin-transform-spread, babel-traverse
- #11265 Add "allowArrayLike" option to the destructuring and spread transforms (@nicolo-ribaudo)
babel-helpers, babel-plugin-transform-for-of, babel-preset-env
- #11266 Add "allowArrayLike" support to the for-of transform (@nicolo-ribaudo)
babel-parser
- #11406 Enable import.meta by default in @babel/parser (#11364) (@kik-o)
babel-plugin-transform-react-pure-annotations, babel-preset-react
- #11428 Implement plugin-transform-react-pure-annotations and add to preset-react (@devongovett)
babel-compat-data, babel-preset-env
- #11451 Add class proposals to shipped proposals (@JLHwung)

:bug: Bug Fix

babel-traverse
- #11595 scope.rename() missing identifier in VariableDeclarator (@yulanggong)
babel-plugin-proposal-optional-chaining
- #10961 fix: optional-chaining should work correctly with ts non-null operator (@macabeus)
babel-parser, babel-types
- #11547 refactor: add isLiteralPropertyName to parser utils (@JLHwung)
babel-plugin-transform-typescript
- #11523 fix: don't elide jsx pragma import namespaces (@jquense)
babel-plugin-proposal-object-rest-spread
- #11550 fix(plugin-proposal-object-rest-spread): use computed memberExpression for literal keys (@kitos)
babel-plugin-transform-runtime
- #11530 fix: skip transforming delete something.includes (@JLHwung)
babel-generator
- #11502 getters and setters support in generator for declare class statement (@zxbodya)

:nail_care: Polish

babel-helpers, babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-parameters, babel-plugin-transform-react-jsx, babel-plugin-transform-runtime, babel-plugin-transform-typescript, babel-preset-env
- #11514 [helpers] Add a private function name within createSuper (@cpojer)

:house: Internal

Other
- #11603 Fix typo (@fisker)
- #11598 chore: use latest node in GitHub actions (@JLHwung)
- #11590 chore: update test262 (@JLHwung)
- #11522 chore: pin windows node.js version (@JLHwung)
- #11504 chore: update babel deps (@JLHwung)
babel-parser
- #11597 Fix comments for smartPipeline topic-forbidding contexts (@lazytype)
babel-core, babel-generator, babel-helper-compilation-targets, babel-helpers, babel-parser, babel-plugin-proposal-decorators, babel-plugin-proposal-json-strings, babel-plugin-transform-block-scoping, babel-plugin-transform-flow-comments, babel-plugin-transform-modules-systemjs, babel-plugin-transform-react-jsx-source, babel-plugin-transform-runtime, babel-preset-env, babel-standalone, babel-template, babel-traverse, babel-types
- #11512 Use ?. where it represents the intended semantics (@nicolo-ribaudo)

:running_woman: Performance

babel-plugin-proposal-object-rest-spread
- #11520 Use single object spread call in loose mode (@jridgewell)

:leftwards_arrow_with_hook: Revert

babel-standalone
- #11538 Downgrade rollup to 1.27.9 (@nicolo-ribaudo)

Committers: 18

Andrew Leedham (@AndrewLeedham)
Arun Kumar Mohan (@arku)
Bogdan Savluk (@zxbodya)
Bruno Macabeus (@macabeus)
Christoph Nakazawa (@cpojer)
Devon Govett (@devongovett)
Henry Zhu (@hzoo)
Huáng Jùnliàng (@JLHwung)
Jason Quense (@jquense)
Justin Ridgewell (@jridgewell)
Kiko Estrada (@kik-o)
Nicolò Ribaudo (@nicolo-ribaudo)
Nikita Kirsanov (@kitos)
Vivek Nayyar (@vivek12345)
@dfabulich
@lazytype
fisker Cheung (@fisker)
任文龙 (@yulanggong)

Open source →

7.9.020 Mar 2020

Thanks to @andrewdotn, @clshortfuse, @lunaruan, @oliverdunk, @rickbutton, @Taym95 and @Wetinee for their first PRs!

v7.9.0 (2020-03-20)

Thanks to @andrewdotn, @clshortfuse, @lunaruan, @oliverdunk, @rickbutton, @Taym95 and @Wetinee for their first PRs!

Blog post: https://babeljs.io/blog/2020/03/16/7.9.0

:rocket: New Feature

babel-generator, babel-helper-builder-react-jsx-experimental, babel-helper-builder-react-jsx, babel-plugin-transform-block-scoping, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-inline-elements, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx, babel-plugin-transform-regenerator, babel-preset-react, babel-preset-typescript, babel-standalone
- #11126 Mark transpiled JSX elements as pure (@nicolo-ribaudo)
babel-helper-builder-react-jsx-experimental, babel-helper-builder-react-jsx, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx-self, babel-plugin-transform-react-jsx, babel-preset-react, babel-standalone
- #11154 Add experimental version of the babel-plugin-transform-react-jsx transform (@lunaruan)
babel-compat-data, babel-preset-env
- #11083 Include preset modules (@nicolo-ribaudo)
- #10971 Add numeric separator to shippedProposals (@Wetinee)
babel-core, babel-helpers, babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-parameters, babel-plugin-transform-react-jsx, babel-plugin-transform-runtime, babel-plugin-transform-typescript, babel-preset-env
- #8656 Allow extending untranspiled classes (@nicolo-ribaudo)
babel-core, babel-helper-module-transforms, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd
- #11194 Allow defining the moduleIds-related option in the transform plugins (@nicolo-ribaudo)
babel-core, babel-generator, babel-parser, babel-plugin-syntax-record-and-tuple, babel-types
- #10865 Added support for record and tuple syntax. (@rickbutton)
babel-generator, babel-parser, babel-plugin-transform-flow-strip-types, babel-preset-flow
- #11178 Implement support for declare on class fields with Flow (@nicolo-ribaudo)
babel-types
- #10680 Add cloneDeepWithoutLoc (@Taym95)
babel-generator
- #11028 Added jsescOptions to Numeric Literals (@sidntrivedi012)
babel-generator, babel-parser, babel-types
- #11077 Add support for flow's SymbolTypeAnnotation (@existentialism)
babel-parser
- #11117 Parse BigInts by default (@nicolo-ribaudo)
- #11254 Add estree parsing support for export * as A (@existentialism)
- #11246 feat: align ID_Start/ID_Continue regex to Unicode 13.0.0 (@JLHwung)
babel-plugin-transform-react-jsx-source, babel-preset-react
- #11139 feat(react-jsx-source): add columnNumber property (@motiz88)
babel-generator, babel-parser, babel-plugin-transform-typescript, babel-preset-typescript, babel-types
- #11171 Add import type and export type support to TypeScript (@nicolo-ribaudo)

:bug: Bug Fix

babel-helper-builder-react-jsx-experimental, babel-helper-builder-react-jsx, babel-helper-validator-identifier, babel-highlight, babel-parser, babel-types
- #11289 Add @babel/helper-validator-identifier (@JLHwung)
babel-plugin-proposal-optional-chaining
- #11261 Memoize call expressions in optional chains in loose mode (@oliverdunk)
babel-plugin-transform-react-jsx-self, babel-preset-react
- #11290 Pass the correct this to JSX's __self with the old plugin (@nicolo-ribaudo)
babel-helper-builder-react-jsx-experimental, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx
- #11288 Use the correct this in __self for JSX elements in arrows (@nicolo-ribaudo)
babel-compat-data, babel-preset-env
- #11280 Move object-rest-spread after transform-parameters (@JLHwung)
babel-helpers, babel-plugin-transform-for-of, babel-preset-env
- #11285 Allow for-of on polyfilled or builtin iterables without Symbol support (@nicolo-ribaudo)
- #11263 Add for-of fallback for arrays in browsers without symbol support (@nicolo-ribaudo)
babel-plugin-proposal-object-rest-spread
- #11282 fix: object-rest-spread should not transform export array rest (@JLHwung)
babel-register
- #11249 Add path separator to @babel/register sourceRoot (@andrewdotn)
babel-core, babel-helpers, babel-plugin-transform-runtime
- #10575 Create File class for babel helpers (@JLHwung)
babel-helpers, babel-plugin-transform-modules-commonjs, babel-preset-env, babel-runtime-corejs2, babel-runtime
- #11268 Allow rest/spread on polyfilled or builtin iterables without Symbol support (@nicolo-ribaudo)
babel-parser
- #11148 Allow await when it is not in AsyncArrowHead (@arku)
babel-helpers, babel-plugin-proposal-object-rest-spread, babel-runtime-corejs2, babel-runtime
- #9794 fix(rest-spread): Do not require Symbol.iterator for strings (@clshortfuse)
babel-generator
- #11255 Fix printing edge cases in Nullish Coalescing and Optional Chaining (@jridgewell)

:nail_care: Polish

babel-parser
- #11208 Rephrase parser error message (@JLHwung)
babel-helpers, babel-plugin-transform-destructuring, babel-plugin-transform-modules-commonjs, babel-plugin-transform-spread, babel-preset-env, babel-runtime-corejs2, babel-runtime
- #11264 Throw better errors for non-iterables when Symbol doesn't exist. (@nicolo-ribaudo)

:house: Internal

babel-helper-builder-react-jsx-experimental, babel-helper-builder-react-jsx, babel-helper-validator-identifier, babel-highlight, babel-parser, babel-types
- #11289 Add @babel/helper-validator-identifier (@JLHwung)
babel-compat-data, babel-preset-env
- #11277 Update compat-data (@existentialism)
babel-core
- #11276 chore: bump json5 and minimist (@JLHwung)
babel-types
- #11250 Add stricter Optional Chain node validation (@jridgewell)
- #11267 Update Purish aliases (@jridgewell)
babel-helpers, babel-plugin-transform-block-scoping, babel-plugin-transform-for-of, babel-plugin-transform-parameters, babel-plugin-transform-runtime, babel-preset-env
- #11262 Extract for-of iterator handling to a helper (@nicolo-ribaudo)
babel-core, babel-plugin-proposal-decorators, babel-plugin-proposal-logical-assignment-operators, babel-plugin-proposal-object-rest-spread, babel-plugin-proposal-partial-application, babel-plugin-proposal-pipeline-operator, babel-plugin-transform-parameters, babel-traverse
- #11260 Support more node types in generateUidBasedOnNode (@jridgewell)
Other
- #11259 Remove unused gulp-rename (@existentialism)

Committers: 15

Andrew Neitsch (@andrewdotn)
Arun Kumar Mohan (@arku)
Brian Ng (@existentialism)
Carlos Lopez (@clshortfuse)
Guy Bedford (@guybedford)
Huáng Jùnliàng (@JLHwung)
Justin Ridgewell (@jridgewell)
Luna Ruan (@lunaruan)
Moti Zilberman (@motiz88)
Nicolò Ribaudo (@nicolo-ribaudo)
Oliver Dunk (@oliverdunk)
Rick Button (@rickbutton)
Siddhant N Trivedi (@sidntrivedi012)
Taym Haddadi (@Taym95)
Ye Wei (@Wetinee)

Open source →

7.8.627 Feb 2020

Thanks to @brokensandals, @fengzilong, @InsignificantReasons, @liamfd, @liuxingbaoyu, and @openorclose for their first PRs!

v7.8.6 (2020-02-27)

Thanks to @brokensandals, @fengzilong, @InsignificantReasons, @liamfd, @liuxingbaoyu, and @openorclose for their first PRs!

:eyeglasses: Spec Compliance

babel-helper-module-transforms, babel-helper-replace-supers, babel-plugin-transform-modules-commonjs
- #11109 Fix rewriteThis in helper-module-transforms for computed class elements (@sidntrivedi012)
babel-parser
- #10956 Refactor await/yield production parameter tracking (@JLHwung)

:rocket: New Feature

babel-helper-create-regexp-features-plugin, babel-plugin-transform-classes, babel-plugin-transform-named-capturing-groups-regex, babel-preset-env
- #11134 Mark wrapNativeSuper and wrapRegExp as pure (@nicolo-ribaudo)

:bug: Bug Fix

babel-helper-compilation-targets
- #11124 fix: search for browserslist if esmodules is falsy (@fengzilong)
babel-register
- #11160 fix: workaround misleading node.js ENOENT error (@JLHwung)
babel-parser
- #11146 Parse declare modifier around accessibility modifiers (@JLHwung)
- #11092 Fix Async Generic After Await Parsing Error (@liamfd)
babel-compat-data, babel-preset-env
- #10929 Update preset-env builtin-definitions (@JLHwung)
babel-traverse
- #11136 fix @babel/traverse can't use path.remove() with noScope (@liuxingbaoyu)
babel-helper-create-class-features-plugin, babel-helper-replace-supers
- #11068 Fix classNameTDZError in computed prototype methods with class fields (@sidntrivedi012)
babel-template
- #11112 Respect preserveComments option in tempate.ast() (@dentrado)
babel-plugin-transform-for-of
- #11088 Allow redeclaration of loop variable in body (@openorclose)
babel-helper-module-transforms, babel-plugin-transform-modules-commonjs
- #11074 Fix export bindings not updated by 'for ... in' and 'for ... of' (@vedantroy)
babel-standalone
- #10797 fix: specify sourceFileName when generating inline sourcemaps (@JLHwung)
babel-types
- #11089 Make isReferenced return false for method parameter name (@brokensandals)

:nail_care: Polish

babel-core, babel-generator, babel-plugin-external-helpers, babel-plugin-proposal-async-generator-functions, babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-proposal-function-bind, babel-plugin-transform-async-to-generator, babel-plugin-transform-classes, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-function-name, babel-plugin-transform-parameters, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-jsx, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-plugin-transform-typescript, babel-preset-env
- #11133 Skip newlines around inline #__PURE__ annotations (@nicolo-ribaudo)

:house: Internal

Other
- #11175 replace gulp-watch by gulp.watch (@JLHwung)
- #11163 chore: migrate lock threads to github actions (@JLHwung)
- #11164 chore: specify dependency rule of check-compat-data-ci (@JLHwung)
- #11072 Update @babel deps (@existentialism)
babel-generator, babel-helper-fixtures, babel-parser, babel-traverse
- #11168 Enable more eslint recommended rules (@JLHwung)
babel-helper-replace-supers
- #11121 Fix typing of ReplaceSupers options (@existentialism)
babel-core, babel-plugin-syntax-decorators, babel-template, babel-traverse
- #11119 Add eslint-plugin-jest (@JLHwung)
babel-parser
- #11096 Wrap type-only class fields in flow comments (@nicolo-ribaudo)
babel-core, babel-parser, babel-types
- #11093 Turn on no-fallthrough rule (@JLHwung)
babel-preset-stage-0, babel-preset-stage-1, babel-preset-stage-2, babel-preset-stage-3
- #11101 Remove stage presets from the monorepo (@nicolo-ribaudo)
babel-preset-env-standalone
- #10993 Archive @babel/preset-env-standalone (@nicolo-ribaudo)

Committers: 12

Brian Ng (@existentialism)
Daryl Tan (@openorclose)
Huáng Jùnliàng (@JLHwung)
Jacob Williams (@brokensandals)
Kai Cataldo (@kaicataldo)
Liam Doran (@liamfd)
MO (@fengzilong)
Martin Forsgren (@dentrado)
Nicolò Ribaudo (@nicolo-ribaudo)
Siddhant N Trivedi (@sidntrivedi012)
Vedant Roy (@vedantroy)
@liuxingbaoyu

Open source →

7.8.430 Jan 2020

> :warning: In Babel 7.8.0 we introduced the --copy-ignored option for @babel/cli, defaulting to false. However, previous versions behaved as if that

v7.8.4 (2020-01-30)

:warning: In Babel 7.8.0 we introduced the --copy-ignored option for @babel/cli, defaulting to false. However, previous versions behaved as if that option was present: for this reason, we changed its default value to true (when --copy-files is provided) and introduced a --no-copy-ignored option to disable it.

Thanks to @3cp, @BenoitZugmeyer, @pustovalov, @regiontog, and @vedantroy for their first PRs!

:eyeglasses: Spec Compliance

babel-parser
- #11031 fix: properly parse member expression after property initializer (@vedantroy)
- #11017 Update coalesce precedence (@JLHwung)
- #11009 fix: triple __proto__ in object patterns should be allowed (@JLHwung)
- #10987 Duplicate __proto__ key should be allowed in object patterns (@JLHwung)

:bug: Bug Fix

babel-cli
- #11063 [@babel/cli] Copy ignored files by default (@nicolo-ribaudo)
babel-compat-data
- #11066 Fix core-js 2 builtin data for opera (@danez)
babel-helpers, babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-parameters, babel-plugin-transform-typeof-symbol, babel-preset-env
- #11049 Avoid compiling the _typeof helper with itself (@nicolo-ribaudo)
babel-traverse
- #11011 Bug/missing references after crawl (@regiontog)
babel-plugin-transform-parameters
- #9714 Fix rest parameters indexing with TypeScript 'this parameter' (@BenoitZugmeyer)
babel-plugin-transform-for-of
- #11023 fix: for-of transform should skip for-await-of (@JLHwung)
babel-generator
- #11014 Fix parentheses removal in nullish-coalescing operation (@sidntrivedi012)
babel-helper-compilation-targets
- #11006 fix: supply '.' subpath for backward compatibility with node.js 13.0-13.1 (@JLHwung)

:nail_care: Polish

babel-core
- #10969 polish: throw human-friendly error when item-option pair is incorrectly unwrapped (@JLHwung)

:memo: Documentation

babel-parser
- #11015 add AST for the module attribute proposal (@xtuc)
babel-preset-env
- #11030 update compat-data related docs/config [skip ci] (@JLHwung)

:house: Internal

babel-compat-data
- #11039 Update compat table (@nicolo-ribaudo)
- #11041 Delete duplicated file in @babel/compat-data (@nicolo-ribaudo)
- #10814 chore: map mobile browser data to their desktop version (@JLHwung)
- #11024 Check that generated compat-data is up to date on CI (@nicolo-ribaudo)
babel-parser
- #11032 refactor: simplify toAssignable routine (@JLHwung)
- #11026 chore: use @babel/eslint-config-internal (@JLHwung)
babel-compat-data, babel-preset-env
- #11016 Re-generate preset-env fixtures (@nicolo-ribaudo)
babel-compat-data, babel-node, babel-parser, babel-preset-env
- #11025 Enable no-process-exit (@JLHwung)
Other
- #11021 chore: replace yarn-upgrade by bump-babel-dependencies in vuejs e2e tests (@JLHwung)
- #11004 chore: test against @vue/babel-preset-app (@JLHwung)
babel-core
- #10995 Exclude import() tests from pubilsh build (@nicolo-ribaudo)

:running_woman: Performance

babel-parser
- #11029 fix(babel-parser): avoid state.clone() to clone the whole token store (@3cp)

Committers: 11

Benoît Zugmeyer (@BenoitZugmeyer)
Chunpeng Huo (@3cp)
Daniel Tschinder (@danez)
Erlend Tobiassen (@regiontog)
Huáng Jùnliàng (@JLHwung)
Nicolò Ribaudo (@nicolo-ribaudo)
Pavel Pustovalov (@pustovalov)
Siddhant N Trivedi (@sidntrivedi012)
Sven Sauleau (@xtuc)
Tan Li Hau (@tanhauhau)
Vedant Roy (@vedantroy)

Open source →

7.8.313 Jan 2020

babel-preset-env-standalone, babel-standalone

v7.8.3 (2020-01-13)

:bug: Bug Fix

babel-types
- #11002 fix: generated builder parameter should respect builder keys (@JLHwung)

:house: Internal

babel-preset-env-standalone, babel-standalone
- #10994 Ignore .map files in standalone packages (@nicolo-ribaudo)
babel-plugin-proposal-decorators, babel-plugin-proposal-dynamic-import, babel-plugin-proposal-logical-assignment-operators, babel-plugin-proposal-object-rest-spread, babel-plugin-syntax-async-generators, babel-plugin-syntax-bigint, babel-plugin-syntax-dynamic-import, babel-plugin-syntax-json-strings, babel-plugin-syntax-nullish-coalescing-operator, babel-plugin-syntax-object-rest-spread, babel-plugin-syntax-optional-catch-binding, babel-plugin-syntax-optional-chaining, babel-plugin-transform-flow-strip-types, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-react-constant-elements, babel-preset-env-standalone, babel-preset-env, babel-standalone
- #10820 Archive syntax plugins enabled by default (@nicolo-ribaudo)

:leftwards_arrow_with_hook: Revert

Every package
- #11003 Revert "chore: specify package type (#10849)" (@nicolo-ribaudo)

Committers: 2

Huáng Jùnliàng (@JLHwung)
Nicolò Ribaudo (@nicolo-ribaudo)

Open source →

7.8.012 Jan 2020

babel-plugin-proposal-numeric-separator

v7.8.0 (2020-01-12)

Blog post on the website

:eyeglasses: Spec Compliance

babel-parser
- #10980 Disallow private name in object elements and TS type elements (@JLHwung)
- #10955 LiteralPropertyName should allow BigIntLiteral (@JLHwung)
- #10953 fix: check await when parsing AsyncArrowBindingIdentifier (@JLHwung)
- #10947 Fix: TopLevelAwait should respect await identifiers defined in sub scope. (@JLHwung)
- #10946 fix: Class Field Initializer should not allow await expression as immediate child (@JLHwung)
babel-plugin-proposal-numeric-separator
- #10938 StringNumericLiteral does not include NumericLiteralSeparator (@JLHwung)
babel-generator, babel-parser, babel-plugin-proposal-private-methods
- #10456 [parser] Disallow duplicate and undeclared private names (@nicolo-ribaudo)

:boom: Breaking Change

babel-types
- #10917 (opt-in) Improve @babel/types with env.BABEL_TYPES_8_BREAKING (@nicolo-ribaudo)

:rocket: New Feature

babel-standalone
- #10821 Merge env-standalone to babel-standalone (@JLHwung)
babel-core
- #10783 Add babelrc.json support (@yordis)
- #10903 Add support for babel.config.mjs and .babelrc.mjs (@nicolo-ribaudo)
babel-compat-data, babel-preset-env-standalone, babel-preset-env
- #10811 Add optional-chaining and nullish-coalescing to preset-env (@Druotic)
babel-helper-module-transforms, babel-plugin-transform-modules-systemjs
- #10780 add allowTopLevelThis option to transform-modules-systemjs (@JLHwung)
babel-parser
- #10817 enable optional chaining by default in @babel/parser (@jackisherwood)
babel-cli
- #10887 --copy-ignored flag added to CLI (@rajasekarm)
- #9144 Add --out-file-extension option to babel-cli (@eps1lon)
babel-core, babel-generator, babel-parser
- #10819 Enable nullish coalescing by default in @babel/parser (@layershifter)
babel-core, babel-parser
- #10843 [parser] enable dynamic import by default (@AbdulAli19)

:bug: Bug Fix

babel-node
- #10763 Filename detection should respect short flags (@JLHwung)
babel-plugin-proposal-numeric-separator
- #10938 StringNumericLiteral does not include NumericLiteralSeparator (@JLHwung)
babel-preset-env
- #10790 Use chrome data when android is absent (@JLHwung)
- #10930 fix: Promise.any requires global.AggregateError (@JLHwung)
babel-parser
- #10944 When reading a new string, U+2028/2029 should correctly set the new column (@JLHwung)
- #10937 Refactor parseSubscript (@JLHwung)
- #10901 fix: lost leading comment after named import (@elevatebart)
Other
babel-traverse
- #10949 Override toString in case this function is printed (@jayenashar)
babel-helper-module-transforms, babel-plugin-transform-modules-commonjs
- #10934 helper-module-transforms: dereference imported template tag (@ajafff)
babel-traverse, babel-types
- #10912 Fix parameter expression get binding (@JLHwung)
babel-core
- #10914 @babel/core: parse should parse only (@kaicataldo)
babel-helpers
- #10902 fix: Object.getOwnPropertySymbols called on non-object (@bassaer)

:nail_care: Polish

babel-node
- #9695 Use babel > as prompt in babel-node (@ZYSzys)
babel-parser
- #10906 refactor: remove inClassProperty parser state (@JLHwung)

:memo: Documentation

babel-preset-env
- #10982 CONTRIBUTING: Update link to plugin-features.js [skip ci] (@andersk)
Other
- #10973 Added instructions to fork the repo in order to setup. (@sidntrivedi012)

:house: Internal

babel-preset-env
- #10983 chore: update corejs fixtures (@JLHwung)
- #10974 chore: update caniuse-usage Chrome 49 related fixtures (@JLHwung)
- #10924 Replace custom "findSuggestion" function with "levenary" (@nicolo-ribaudo)
babel-core
- #10507 Prepare @babel/core for asynchronicity (@nicolo-ribaudo)
Other
- #10979 Reduce false negative cases of typescript parser tests (@JLHwung)
- #10976 Update Test262, Flow and TS parser tests (@nicolo-ribaudo)
- #10964 Bump coverage target from 80% to 90% (@nicolo-ribaudo)
- #10958 Fix recent e2e-vuejs-cli error (@JLHwung)
- #10919 Add integration test: e2e-vue-cli (@JLHwung)
- #10943 chore: update test262 (@JLHwung)
- #10918 chore: refine e2e test scripts (@JLHwung)
- #10905 chore: separate build-standalone with coverage (@JLHwung)
- #10898 Move coverage to GitHub actions (@JLHwung)
babel-compat-data, babel-helper-compilation-targets, babel-preset-env
- #10899 Extract targets parser and compat data from preset-env (@nicolo-ribaudo)
babel-parser
- #10950 test: add invalid-lone-import test (@JLHwung)
- #10936 refactor: remove unecessary checkYieldAwaitInDefaultParams (@JLHwung)
- #10935 refactor: remove unused invalidTemplateEscapePosition tokenizer state (@JLHwung)
- #10939 TSTypeCastExpression should not be inside call parameters (@JLHwung)
- #10942 Remove unused parser methods (@JLHwung)
Every package
- #10849 chore: specify package type [skip-ci] (@JLHwung)

:leftwards_arrow_with_hook: Revert

babel-cli
- #10923 fix: minified should not accept optional argument (@JLHwung)

Committers: 17

Abdul Ali (@AbdulAli19)
Anders Kaseorg (@andersk)
Barthélémy Ledoux (@elevatebart)
Huáng Jùnliàng (@JLHwung)
Jack Isherwood (@jackisherwood)
James Beavers (@Druotic)
Jayen Ashar (@jayenashar)
Kai Cataldo (@kaicataldo)
Klaus Meinhardt (@ajafff)
Nicolò Ribaudo (@nicolo-ribaudo)
Oleksandr Fediashov (@layershifter)
Raja Sekar (@rajasekarm)
Sebastian Silbermann (@eps1lon)
Siddhant N Trivedi (@sidntrivedi012)
Tsubasa Nakayama (@bassaer)
Yordis Prieto (@yordis)
ZYSzys (@ZYSzys)

Open source →

7.7.422 Nov 2019

Thanks @chrishinrichs, @khoumani, @m-ahmadi, @BBlackwo, @SakibulMowla, @4geru, @Shriram-Balaji, @ZYSzys and @arku for their first PRs!

v7.7.4 (2019-11-23)

Thanks @chrishinrichs, @khoumani, @m-ahmadi, @BBlackwo, @SakibulMowla, @4geru, @Shriram-Balaji, @ZYSzys and @arku for their first PRs!

:bug: Bug Fix

babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
- #10748 Add support for native esm to @babel/runtime. (@nicolo-ribaudo)
babel-preset-env
- #10742 Update preset-env mappings. (@existentialism)
babel-parser
- #10737 Flow enums: fix enum body location. (@gkz)
- #10657 Fix some incorrect typeof parsing in flow. (@existentialism)
- #10582 [parser] Allow optional async methods. (@gonzarodriguezt)
- #10710 register import equals specifier. (@JLHwung)
- #10592 Allow TypeScript type assertions in array destructuring. (@SakibulMowla)
babel-preset-env-standalone
- #10732 fix: add missing available plugins to babel-preset-env-standalone. (@JLHwung)
babel-plugin-transform-function-name, babel-plugin-transform-modules-umd, babel-preset-env
- #10701 Circumvent typeof transform for umd build template. (@JLHwung)
babel-cli
- #10698 Babel should not silently remove unknown options after commander arguments. (@JLHwung)
babel-plugin-proposal-optional-chaining
- #10694 Fix optional method chaining in derived classes. (@Shriram-Balaji)
babel-parser, babel-types
- #10677 Add asserts this [is type] parsing support. (@JLHwung)
babel-traverse
- #10598 Fix parentheses on replaceWithMultiple for JSX. (@khoumani)
babel-helpers, babel-plugin-proposal-object-rest-spread, babel-preset-env
- #10683 Fix: Don't call Object.keys on non-objects (babel#10482). (@chrishinrichs)

:nail_care: Polish

babel-plugin-proposal-nullish-coalescing-operator
- #10720 polish: skip creating extra reference for safely re-used node. (@JLHwung)

:house: Internal

Other
- #10731 Removed duplicate key in package.json. (@rajasekarm)
- #10718 chore: use loose mode of transform. (@JLHwung)
- #10579 Implement PR workflow for running test262 on babel PRs. (@jbhoosreddy)
- #10648 bump @babel/* dev dependencies. (@JLHwung)
- #10569 E2E test Babel with itself before publishing. (@nicolo-ribaudo)
babel-core
- #10668 Reduce standalone build size. (@JLHwung)
babel-plugin-transform-literals, babel-preset-env-standalone
- #10725 fix typo [ci-skip]. (@JLHwung)
babel-cli
- #10692 Add missing flow type to babel-cli for consistency. (@ZYSzys)

Committers: 15

4geru koichi uchinishi (4geru)
Brian Ng (existentialism)
George Zahariev (gkz)
Huáng Jùnliàng (JLHwung)
Jaideep Bhoosreddy (jbhoosreddy)
Kai Cataldo (kaicataldo)
Kenza Houmani (khoumani)
Mohammad Ahmadi (m-ahmadi)
Nicolò Ribaudo (nicolo-ribaudo)
Raja Sekar (rajasekarm)
Sakibul Mowla (SakibulMowla)
Shriram Balaji (Shriram-Balaji)
ZYSzys (ZYSzys)
chrishinrichs
gr (gonzarodriguezt)

Open source →

@babel/plugin-transform-for-of

Release timeline

Releases

v7.12.13 (2021-02-03)

:eyeglasses: Spec Compliance

:bug: Bug Fix

:nail_care: Polish

:memo: Documentation

:house: Internal

:microscope: Output optimization

Committers: 22

v7.12.1 (2020-10-16)

:bug: Bug Fix

:house: Internal

Committers: 2

v7.10.4 (2020-06-30)

:eyeglasses: Spec Compliance

:bug: Bug Fix

:nail_care: Polish

:house: Internal

Committers: 7

v7.10.1 (2020-05-27)

:bug: Bug Fix

:house: Internal

Committers: 3

v7.10.0 (2020-05-26)

:eyeglasses: Spec Compliance

:rocket: New Feature

:bug: Bug Fix

:nail_care: Polish

:house: Internal

:running_woman: Performance

:leftwards_arrow_with_hook: Revert

Committers: 18

v7.9.0 (2020-03-20)

:rocket: New Feature

:bug: Bug Fix

:nail_care: Polish

:house: Internal

Committers: 15

v7.8.6 (2020-02-27)

:eyeglasses: Spec Compliance

:rocket: New Feature

:bug: Bug Fix

:nail_care: Polish

:house: Internal

Committers: 12

v7.8.4 (2020-01-30)

:eyeglasses: Spec Compliance

:bug: Bug Fix

:nail_care: Polish

:memo: Documentation

:house: Internal

:running_woman: Performance

Committers: 11

v7.8.3 (2020-01-13)

:bug: Bug Fix

:house: Internal

:leftwards_arrow_with_hook: Revert

Committers: 2

v7.8.0 (2020-01-12)

:eyeglasses: Spec Compliance

:boom: Breaking Change

:rocket: New Feature

:bug: Bug Fix

:nail_care: Polish

:memo: Documentation

:house: Internal

:leftwards_arrow_with_hook: Revert

Committers: 17

v7.7.4 (2019-11-23)

:bug: Bug Fix

:nail_care: Polish

:house: Internal

Committers: 15