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239
Latest Version
Avg Release Cycle
8 days
Latest Release
1627 days ago

Changelog History
Page 24

  • v7.0.0-alpha.17 Changes

    July 26, 2017
    • 🛠 Lots of bug fixes
    • 📦 function.sent (temporary at babel-plugin-transform-function-sent2 until we get access to the npm package) EDIT: republished babel-plugin-transform-function-sent
    • 🔌 Optional catch binding try {} catch {}: babel-plugin-transform-optional-catch-binding
    • es2015-parameters loose mode that doesn't use arguments

    :eyeglasses: Spec Compliance

    • 🔌 babel-plugin-check-es2015-constants

    Instead of throwing a compile time error when const is violated, Babel should insert a throw statement before the violation.

    :boom: Breaking Change

    🚚 > Removes the "Noop" AST node, which was only used in the flow-comments plugin and probably unlikely in the ecosystem.

    :rocket: New Feature

    • 🔌 babel-plugin-transform-react-constant-elements
      • #5307 feature: Support whitelisting mutable props for react-constant-elements. (@STRML)

    If you know a certain property will be ok to hoist

    {
  "plugins": [
    ["transform-react-constant-elements", {"allowMutablePropsOnTags": ["FormattedMessage"]}],
  ]
}
    • babel-generator, babel-types
    • 🔌 babel-generator, babel-plugin-transform-flow-strip-types, babel-types 
    declare function foo(x: mixed): boolean %checks(x !== null);
    • 🔌 babel-generator, babel-plugin-transform-flow-strip-types 
    declare module "foo" {
  declare export type * from "bar";
}
    • 🔌 babel-helper-remap-async-to-generator, babel-helper-wrap-function, babel-helpers, babel-plugin-transform-function-sent, babel-preset-stage-2 
    function* gen() {
  let a = function.sent;
}

    let gen = _skipFirstGeneratorNext(function* gen() {
  const _functionSent = yield;
  let a = _functionSentt;
});
    • 🔌 babel-core, babel-generator, babel-plugin-syntax-optional-catch-binding, babel-plugin-transform-optional-catch-binding, babel-template, babel-traverse, babel-types 
    try {
} catch {}
    • 🔌 babel-plugin-transform-es2015-parameters

    Non-spec compliant transform (disregards arity) but doesn't use arguments

    var t = function (f = "foo") {
  return f + " bar";
};

    var t = function (f) {
  if (f === void 0) {
    f = "foo";
  }

  return f + " bar";
};

    :bug: Bug Fix

    • 🔌 babel-core, babel-helpers, babel-plugin-transform-object-rest-spread, babel-plugin-transform-react-constant-elements
      • #5757 Non string computed keys in object-rest-spread. (@peey)
    • babel-traverse
      • #5745 Use first binding for multiple var declarations. (@peey)
    • 🏗 babel-helper-builder-binary-assignment-operator-visitor, babel-helper-explode-assignable-expression, babel-plugin-transform-exponentiation-operator
    • 🔌 babel-plugin-transform-es2015-for-of, babel-traverse
    • 🔌 babel-plugin-transform-numeric-separator, babel-types
    • 🔌 babel-plugin-transform-es2015-modules-amd, babel-plugin-transform-es2015-modules-commonjs, babel-plugin-transform-es2015-modules-umd
    • 🔌 babel-plugin-transform-es2015-for-of
    • 🔌 babel-core, babel-plugin-transform-object-rest-spread, babel-traverse
    • babel-generator
    • 🔌 babel-helpers, babel-plugin-transform-es2015-classes, babel-plugin-transform-es2015-typeof-symbol
    • 🔌 babel-plugin-transform-react-inline-elements

    :house: Internal

    • ✅ babel-helper-transform-fixture-test-runner
    • babel-code-frame
    • babel-register
    • babel-types
    • babel-cli
    • babel-generator
    • babel-traverse
    • Other
    • 🏗 babel-core, babel-generator, babel-helper-builder-react-jsx, babel-helper-function-name, babel-helper-replace-supers, babel-plugin-transform-es2015-block-scoping, babel-plugin-transform-es2015-classes, babel-plugin-transform-jscript, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-jsx, babel-template, babel-traverse, babel-types
    • 🔌 babel-plugin-transform-es2015-modules-systemjs

  • v7.0.0-alpha.16 Changes

    July 25, 2017

    Publish issue

  • v7.0.0-alpha.15 Changes

    July 11, 2017

    This is a Stage 0 TC39 Proposal (subject to change/removal and your feedback!)

    const obj = {
  foo: {
    bar: {
      baz: 42,
    },
  },
};

const baz = obj?.foo?.bar?.baz; // 42

const safe = obj?.qux?.baz; // undefined

// Optional chaining and normal chaining can be intermixed
obj?.foo.bar?.baz; // Only access `foo` if `obj` exists, and `baz` if
                   // `bar` exists

    function Foo() {
  console.log(new.target);
}

Foo(); // => undefined
new Foo(); // => Foo
    • 👍 better for of optimization (if inferred array)
    // these kinds of scenarios will compile to a regular for loop
const x = [];
for (const y of x) {}
const arr = Object.entries(x);
for (const y of arr) {}
    • loose mode for classes is a lot looser

    Input

    class A {}

    Output (loose)

    let A = function A() {}; // loose

    Output (normal)

    function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var A = function A() {
  _classCallCheck(this, A);
};

    :boom: Breaking Change

    • babel-*
      • #5824 Hardcode to double quotes, indent to 2 spaces. (@hzoo)

    This is just the babel-generator output, not a big deal.

    :rocket: New Feature

    • babel-traverse
    • 🔌 babel-plugin-transform-new-target
    • 🔌 babel-core, babel-generator, babel-plugin-syntax-optional-chaining, babel-plugin-transform-optional-chaining, babel-preset-stage-1, babel-template, babel-traverse, babel-types
    • 🔌 babel-core, babel-plugin-transform-es2015-for-of
      • #4747 test for for-of optimization on arrays and add it for array type anno…. (@hzoo)
    • 🔌 babel-helpers, babel-plugin-transform-es2015-classes, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types
      • #4850 Remove ClassCallCheck, possibleConstructorReturn in loose mode. (@hzoo)
    • 🔌 babel-generator, babel-plugin-transform-flow-strip-types, babel-types

    :bug: Bug Fix

    • 🔌 babel-helpers, babel-plugin-transform-class-properties, babel-plugin-transform-es2015-classes
      • #5885 Fix returning an object in a derived class constructor without super. (@jridgewell)
    • 🔌 babel-helper-remap-async-to-generator, babel-plugin-transform-async-to-generator
    • 🔌 babel-plugin-transform-es2015-modules-commonjs
    • 🔌 babel-plugin-transform-es2015-classes
    • babel-cli
    • babel-types
      • #5865 Fix type errors for destructuring assignments(#4227). (@MarckK)
    • babel-generator
    • 🔌 babel-plugin-transform-numeric-separator
    • 🔌 babel-plugin-transform-es2015-template-literals, babel-preset-es2015
    • 🔌 babel-plugin-transform-es2015-parameters
    • 🔌 babel-plugin-syntax-optional-chaining

    💅 :nail_care: Polish

    • 🔌 babel-plugin-transform-es2015-parameters
    • 🏗 babel-helper-builder-react-jsx, babel-plugin-transform-es2015-spread, babel-traverse
    • babel-traverse, babel-types
    • babel-types

    📚 :memo: Documentation

    :house: Internal

    • babel-polyfill
    • Other
    • babel-core, babel-generator
    • babel-*
    • babel-core, babel-generator, babel-traverse, babel-types
    • babel-*
    • babel-generator, babel-traverse
      • #5866 update babel-eslint, try out numeric separators. (@hzoo)
    • babel-generator
    • babel-cli
    • ✅ babel-core, babel-helper-transform-fixture-test-runner, babel-traverse
    • babel-core, babel-traverse

  • v7.0.0-alpha.14 Changes

    • Skipped

  • v7.0.0-alpha.13 Changes

    • Skipped

  • v7.0.0-alpha.12 Changes

    May 31, 2017

    :eyeglasses: Spec Compliance

    • 🔌 babel-core, babel-generator, babel-plugin-syntax-numeric-separator, babel-plugin-transform-numeric-separator, babel-preset-stage-1, babel-template, babel-traverse, babel-types
      • #5793 Support for NumericLiteralSeparator, Stage 1 feature. (@rwaldron)

    :rocket: New Feature

    • babel-code-frame
    • 🔌 babel-core, babel-generator, babel-plugin-syntax-numeric-separator, babel-plugin-transform-numeric-separator, babel-preset-stage-1, babel-template, babel-traverse, babel-types
      • #5793 Support for NumericLiteralSeparator, Stage 1 feature. (@rwaldron)
    • babel-cli
      • #5785 Allow --inspect-brk option to be used with babel-node. (@noinkling)

    :bug: Bug Fix

    • 🔌 babel-plugin-transform-async-to-generator, babel-plugin-transform-es2015-destructuring, babel-plugin-transform-es2015-modules-commonjs, babel-plugin-transform-react-constant-elements
      • #5763 Fix incorrect destructuring in for loop let initialization. (@buunguyen)
    • 🔌 babel-core, babel-plugin-transform-es2015-block-scoping
    • 🔌 babel-plugin-transform-flow-strip-types

    📚 :memo: Documentation

    • 🔌 babel-plugin-check-es2015-constants, babel-plugin-syntax-async-functions, babel-plugin-syntax-async-generators, babel-plugin-syntax-class-properties, babel-plugin-syntax-decorators, babel-plugin-syntax-do-expressions, babel-plugin-syntax-dynamic-import, babel-plugin-syntax-exponentiation-operator, babel-plugin-syntax-export-extensions, babel-plugin-syntax-function-bind, babel-plugin-syntax-function-sent, babel-plugin-syntax-jsx, babel-plugin-syntax-object-rest-spread, babel-plugin-syntax-trailing-function-commas, babel-plugin-transform-async-functions
      • #5798 Make all packages/*/README.md descriptions consistent.. (@rwaldron)
    • Other

    :house: Internal

    • babel-traverse
      • #5746 Remove duplicated getStatementParent and refactor requires to imports in tests. (@maurobringolf)
      • #5779 Added individual test cases for possible errors with path.replaceWith. (@maurobringolf)

  • v7.0.0-alpha.11 Changes

    May 31, 2017
    • Publish issues

  • v7.0.0-alpha.10 Changes

    May 25, 2017
    • Publish issues, use alpha.12

    🚀 Update Babylon: https://github.com/babel/babylon/releases/tag/v7.0.0-beta.9, https://github.com/babel/babylon/releases/tag/v7.0.0-beta.10

    :eyeglasses: Spec Compliance

    • 🔌 babel-generator, babel-plugin-transform-flow-strip-types, babel-types

    :boom: Breaking Change

    • babel-*
      • #5677 Kill the "shadow-functions.js" internal plugin in favor of an explicit helper. (@loganfsmyth)

    :rocket: New Feature

    • babel-*
    • 🔌 babel-plugin-transform-es2015-arrow-functions, babel-plugin-transform-es2015-function-name
      • #5620 Add function name to spec-transformed arrow functions. (@Kovensky)
    • 🔌 babel-plugin-transform-react-display-name
      • #5554 Updated transform-react-display-name for createReactClass addon. (@bvaughn)
    • babel-register

    :bug: Bug Fix

    • babel-types
    • 🔌 babel-plugin-transform-flow-comments
    • 🔌 babel-plugin-transform-do-expressions
    • 🔌 babel-plugin-transform-es2015-classes, babel-plugin-transform-es2015-destructuring, babel-traverse
    • 🔌 babel-core, babel-helpers, babel-plugin-transform-async-to-generator, babel-plugin-transform-react-constant-elements
      • #5688 Fix for #4943 "Calling an async function with default parameter as function for arguments checking handled synchonous". (@hulkish)
    • 🔌 babel-plugin-transform-object-rest-spread

    💅 :nail_care: Polish

    • 🔌 babel-plugin-transform-es2015-template-literals

    📚 :memo: Documentation

    • 🔌 babel-plugin-transform-runtime
      • #5767 [Documentation change] regeneratorRuntime -> _regenerator2.default. (@adityavohra7)
    • 🔌 babel-plugin-transform-es2015-arrow-functions
    • Other
    • babel-core

    :house: Internal

    • babel-helper-fixtures
      • #5765 Support specifying minimum Node version a test requires. (@buunguyen)
    • ✅ babel-helper-transform-fixture-test-runner
    • babel-preset-es2015
    • babel-register
      • #3670 Switch to pirates for babel-register.. (@danez)
    • babel-core
    • 🔌 babel-core, babel-plugin-transform-react-jsx
    • Other

  • v7.0.0-alpha.1 Changes

    March 02, 2017

    :boom: Breaking Change

    • 🔌 babel-core, babel-generator, babel-helper-remap-async-to-generator, babel-plugin-transform-async-to-generator, babel-template, babel-traverse, babel-types
    • 🔌 babel-core, babel-generator, babel-plugin-transform-es2015-destructuring, babel-plugin-transform-es2015-duplicate-keys, babel-plugin-transform-object-rest-spread, babel-template, babel-traverse, babel-types
    • babel-core
    • ✅ babel-core, babel-preset-es2015, babel-preset-es2016, babel-preset-es2017, babel-preset-flow, babel-preset-latest, babel-preset-react, babel-preset-stage-0, babel-preset-stage-1, babel-preset-stage-2, babel-preset-stage-3
      • #5128 [7.0] Remove bc code from preset handling and preset-es2015. (@danez)
    • 🔌 babel-core, babel-generator, babel-helper-remap-async-to-generator, babel-plugin-transform-object-rest-spread, babel-template, babel-traverse, babel-types
    • 🔌 babel-generator, babel-helper-remap-async-to-generator, babel-plugin-transform-object-rest-spread, babel-types
    • babel-generator
    • 🔌 babel-plugin-transform-decorators
    • babel-generator, babel-types
      • #5199 Rename flow AST Type ExistentialTypeParam to ExistsTypeAnnotation. (@koba04)
      • #5229 Rename NumericLiteralTypeAnnotation to NumberLiteralTypeAnnotation. (@phpnode)
    • babel-*
    • babel-preset-stage-1, babel-preset-stage-2
    • babel-register
    • babel-runtime
    • 🔌 babel-generator, babel-plugin-syntax-class-constructor-call, babel-plugin-transform-class-constructor-call, babel-preset-stage-1
    • babel-preset-stage-3
    • Other
    • 🔌 babel-cli, babel-core, babel-plugin-transform-react-constant-elements, babel-traverse
    • 🔌 babel-plugin-transform-es2015-unicode-regex
    • babel-polyfill
    • 🔌 babel-generator, babel-plugin-transform-flow-comments
    • 🔌 babel-plugin-transform-runtime

    :rocket: New Feature

    :bug: Bug Fix

    • babel-generator
    • 🔌 babel-generator, babel-plugin-transform-object-rest-spread
    • babel-core

    📚 :memo: Documentation

    • 🔌 babel-plugin-transform-runtime
    • ✅ babel-plugin-transform-async-to-module-method, babel-plugin-transform-es2015-computed-properties, babel-plugin-transform-es2015-for-of, babel-plugin-transform-es2015-modules-systemjs, babel-plugin-transform-es2015-spread, babel-plugin-transform-es2015-template-literals, babel-plugin-transform-object-rest-spread, babel-plugin-transform-react-jsx, babel-plugin-transform-runtime, babel-plugin-transform-strict-mode, babel-preset-latest, babel-register, babel-template
    • 🔌 babel-plugin-transform-es2015-shorthand-properties
    • Other
      • #5329 Update CONTRIBUTING.md with respect to coverage check [skip ci]. (@zjmiller)

    :house: Internal

    • 🔌 babel-plugin-undeclared-variables-check
      • #5407 remove undeclared plugin [skip ci]. (@hzoo)
    • 🔌 babel-plugin-transform-class-constructor-call
    • babel-generator
    • Other
    • babel-cli
    • babel-core, babel-template, babel-traverse
    • 🔌 babel-cli, babel-core, babel-generator, babel-plugin-transform-async-functions, babel-plugin-transform-async-generator-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-async-to-module-method, babel-plugin-transform-class-properties, babel-plugin-transform-decorators, babel-plugin-transform-do-expressions, babel-plugin-transform-es2015-modules-amd, babel-plugin-transform-es2015-modules-commonjs, babel-plugin-transform-es2015-modules-umd, babel-plugin-transform-exponentiation-operator, babel-plugin-transform-export-extensions, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-function-bind, babel-plugin-transform-object-rest-spread, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-traverse
    • babel-preset-stage-1
      • #5319 Switch decorators-legacy to decorators in the Stage 1 Preset (#5318). (@sashashakun)
    • babel-traverse
    • babel
      • #5293 [7.0] remove standalone babel package. (@hzoo)
    • ✅ babel-helper-transform-fixture-test-runner
    • babel-register
    • babel-cli, babel-core
    • babel-polyfill