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

or using yarn:

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

Changelog

v7.25.9 (2024-10-22)

:bug: Bug Fix

• babel-parser, babel-template, babel-types
  • #16905 fix: Keep type annotations in syntacticPlaceholders mode (@liuxingbaoyu)
• babel-helper-compilation-targets, babel-preset-env
  • #16907 fix: support BROWSERSLIST{,_CONFIG} env (@JLHwung)
• Other
  • #16884 Analyze ClassAccessorProperty to prevent the no-undef rule (@victorenator)

:house: Internal

• babel-helper-transform-fixture-test-runner
  • #16914 remove test options flaky (@JLHwung)

:running_woman: Performance

• babel-parser, babel-types
  • #16918 perf: Make VISITOR_KEYS etc. faster to access (@liuxingbaoyu)