@babel/helper-remap-async-to-generator

What is @babel/helper-remap-async-to-generator?

The @babel/helper-remap-async-to-generator package is a part of the Babel ecosystem that assists in transforming async functions into generator functions along with a regenerator runtime. This transformation is crucial for supporting async/await syntax in environments that do not natively support these features.

What are @babel/helper-remap-async-to-generator's main functionalities?

Transformation of async functions to generator functions

This feature allows developers to write modern async/await syntax and compile it down to ES2015 generator functions, ensuring compatibility with older JavaScript engines.

async function fetchData() {\n  return await fetch('https://api.example.com/data');\n}\n// Transforms to:\nfunction fetchData() {\n  return _asyncToGenerator(function* () {\n    return yield fetch('https://api.example.com/data');\n  })();\n}

Other packages similar to @babel/helper-remap-async-to-generator

regenerator-runtime

Similar to @babel/helper-remap-async-to-generator, regenerator-runtime provides a runtime needed to support the generator functions in environments that do not support modern JavaScript async/await syntax. It is often used together with Babel's transformation plugins.

babel-plugin-transform-async-to-generator

This package is a Babel plugin that transforms async functions into generator functions, similar to what @babel/helper-remap-async-to-generator does but as a standalone Babel plugin. It allows for more direct integration into Babel's plugin system compared to using a helper package.

README

@babel/helper-remap-async-to-generator

Helper function to remap async functions to generators

See our website @babel/helper-remap-async-to-generator for more information.

Install

Using npm:

npm install --save-dev @babel/helper-remap-async-to-generator

or using yarn:

yarn add @babel/helper-remap-async-to-generator --dev

Changelog

v7.15.4 (2021-09-02)

:eyeglasses: Spec Compliance

• babel-helper-create-class-features-plugin, babel-helpers, babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-async-generator-functions, babel-plugin-proposal-class-properties, babel-plugin-proposal-private-methods, babel-plugin-proposal-private-property-in-object, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #13601 Disallow reinitializing private elements (@komyg)

:bug: Bug Fix

• #13638 [eslint] Allow "latest" as ecmaVersion (@fisker)
• babel-traverse, babel-types
  • #13723 getBindingIdentifiers should return params for private methods (@JLHwung)
• babel-types
  • #13715 [babel 8] fix: stricter rest element builder check (@JLHwung)
• babel-helper-compilation-targets
  • #13697 fix: pass browserslistEnv to resolveTargets (@meskill)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-class-properties, babel-plugin-proposal-private-property-in-object
  • #13656 fix: fix static private field shadowed by local variable (@colinaaa)
• babel-plugin-transform-typescript
  • #13664 [ts] Fix transform for nested namespaces shorthand syntax (@nicolo-ribaudo)
• babel-parser
  • #13680 fix(babel-parser): delete static property from class static block for TS (@sosukesuzuki)
  • #13695 fix: assure left bracket is not consumed after dot (@JLHwung)
• babel-core
  • #13532 fix: non breaking align options naming (@fedeci)

:memo: Documentation

• babel-parser
  • #13691 add missing ExportNamespaceSpecifier in spec.md (@flyinox)

:house: Internal

• babel-helper-create-class-features-plugin, babel-plugin-proposal-class-static-block, babel-plugin-proposal-private-property-in-object, babel-plugin-syntax-class-static-block, babel-plugin-syntax-private-property-in-object, babel-plugin-syntax-top-level-await, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-preset-env, babel-standalone
  • #13717 archive stage 4 parser plugins (@JLHwung)

:running_woman: Performance

• babel-core, babel-generator, babel-helper-annotate-as-pure, babel-helper-builder-binary-assignment-operator-visitor, babel-helper-builder-react-jsx, babel-helper-define-map, babel-helper-explode-assignable-expression, babel-helper-function-name, babel-helper-get-function-arity, babel-helper-hoist-variables, babel-helper-member-expression-to-functions, babel-helper-module-imports, babel-helper-module-transforms, babel-helper-optimise-call-expression, babel-helper-remap-async-to-generator, babel-helper-replace-supers, babel-helper-simple-access, babel-helper-skip-transparent-expression-wrappers, babel-helper-split-export-declaration, babel-helper-wrap-function, babel-helpers, babel-preset-env, babel-template, babel-traverse
  • #13685 Use named imports for babel types (@JLHwung)
• babel-cli, babel-helper-define-map, babel-helpers, babel-node, babel-parser, babel-plugin-proposal-async-generator-functions, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-for-of, babel-plugin-transform-modules-systemjs, babel-plugin-transform-parameters, babel-traverse, babel-types
  • #13609 perf: partially replace .concat with .push (@fedeci)