The @babel/plugin-proposal-logical-assignment-operators package allows Babel to compile logical assignment operators into ES5 or your target environment's JavaScript. Logical assignment operators combine logical operations with assignment expressions, enabling more concise and expressive code.

What are @babel/plugin-proposal-logical-assignment-operators's main functionalities?

Logical AND assignment (&&=)

This feature allows the assignment of the right operand to the left operand only if the left operand is truthy. It's equivalent to `a = a && b;`.

a &&= b;

Logical OR assignment (||=)

This feature enables the assignment of the right operand to the left operand if the left operand is falsy. It simplifies the expression `a = a || b;`.

a ||= b;

Logical nullish assignment (??=)

This feature assigns the right operand to the left operand only if the left operand is null or undefined, making the code `a = a ?? b;` more concise.

a ??= b;

Other packages similar to @babel/plugin-proposal-logical-assignment-operators

Changelog

Source

v7.20.7 (2022-12-22)

:eyeglasses: Spec Compliance

babel-helper-member-expression-to-functions, babel-helper-replace-supers, babel-plugin-proposal-class-properties, babel-plugin-transform-classes
- #15223 fix: Deleting super property should throw (@SuperSodaSea)
babel-helpers, babel-plugin-proposal-class-properties, babel-plugin-transform-classes, babel-plugin-transform-object-super
- #15241 fix: Throw correct error types from sed ant class TDZ helpers (@SuperSodaSea)

:bug: Bug Fix

babel-parser, babel-plugin-transform-typescript
- #15209 fix: Support auto accessors with TypeScript annotations (@liuxingbaoyu)
babel-traverse
- #15287 Fix .parentPath after rename in SwitchCase (@nicolo-ribaudo)
babel-plugin-transform-typescript, babel-traverse
- #15284 fix: Ts import type and func with duplicate name (@liuxingbaoyu)
babel-plugin-transform-block-scoping
- #15278 Fix tdz analysis for reassigned captured for bindings (@nicolo-ribaudo)
babel-plugin-proposal-async-generator-functions, babel-preset-env
- #15235 fix: Transform for await with shadowed variables (@liuxingbaoyu)
babel-generator, babel-plugin-proposal-optional-chaining
- #15258 fix: Correctly generate (a ?? b) as T (@liuxingbaoyu)
babel-plugin-transform-react-jsx, babel-types
- #15233 fix: Emit correct sourcemap ranges for JSXText (@liuxingbaoyu)
babel-core, babel-helpers, babel-plugin-transform-computed-properties, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
- #15232 fix: Computed properties should keep original definition order (@SuperSodaSea)
babel-helper-member-expression-to-functions, babel-helper-replace-supers, babel-plugin-proposal-class-properties, babel-plugin-transform-classes
- #15223 fix: Deleting super property should throw (@SuperSodaSea)
babel-generator
- #15216 fix: Print newlines for leading Comments of TSEnumMember (@liuxingbaoyu)

:nail_care: Polish

babel-plugin-transform-block-scoping, babel-traverse
- #15275 Improve relative execution tracking in fn exprs (@nicolo-ribaudo)

:house: Internal

babel-helper-define-map, babel-plugin-transform-property-mutators
- #15274 Inline & simplify @babel/helper-define-map (@nicolo-ribaudo)
babel-core, babel-plugin-proposal-class-properties, babel-plugin-transform-block-scoping, babel-plugin-transform-classes, babel-plugin-transform-destructuring, babel-plugin-transform-parameters, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-preset-env, babel-traverse
- #15200 Rewrite transform-block-scoping plugin (@nicolo-ribaudo)

:running_woman: Performance

babel-helper-compilation-targets
- #15228 perf: Speed up getTargets (@liuxingbaoyu)

Readme

Source