babel-preset-proposal-typescript
Yet another Babel preset for TypeScript, only transforms proposals which TypeScript does not support now.
Last updated 7 years ago by jounqin .
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babel-preset-proposal-typescript

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Yet another Babel preset for TypeScript, only transforms proposals which TypeScript does not support now.

So that you can use babel to transform proposals which are current in stage 0-2 and TypeScript team will not implement them temporarily.

TOC

Enabled proposal plugins

  1. async-do-expressions
  2. do-expressions
  3. function-bind
  4. function-sent
  5. json-strings
  6. partial-application
  7. pipeline-operator
  8. record-and-tuple
  9. throw-expressions
  10. v8intrinsic - Further Detail

Install

# yarn
yarn add -D babel-preset-proposal-typescript

# npm
npm i -D babel-preset-proposal-typescript

Options

option description defaults
decoratorsBeforeExport See Babel Document undefined
decoratorsLegacy whether to use legacy decorators semantic true
isTSX whether to enable jsx plugin with typescript false, but true for /\.[jt]sx$/
pipelineOperator implementation of pipeline operator, minimal, smart or fsharp minimal
recordTuplePolyfill whether to enable import record-tuple plugin and polyfill, or specific the polyfill module name true for Node>=14.6, it represents @bloomberg/record-tuple-polyfill
recordTupleSyntaxType record-tuple syntax, hash or bar hash

Usage

Note that unlike plugins, the presets are applied in an order of last to first (https://babeljs.io/docs/en/presets/#preset-ordering), so please make sure proposal-typescript is used at the last.

Via .babelrc (Recommended)

.babelrc

{
  "presets": ["proposal-typescript"]
}

Via CLI

babel input.ts --presets proposal-typescript > output.ts

Via Node API

require('@babel/core').transform('code', {
  presets: ['proposal-typescript'],
})

Via webpack

Pipe codes through babel-loader.

loader = {
  test: /\.[jt]sx?$/,
  loader: 'babel-loader',
  options: {
    presets: ['@babel/typescript', 'proposal-typescript'],
  },
}

// if you prefer `ts-loader` or `awesome-typescript-loader`
loader = {
  test: /\.tsx?$/,
  use: [
    {
      loader: 'ts-loader',
    },
    {
      loader: 'babel-loader',
      options: {
        presets: ['proposal-typescript'],
      },
    },
  ],
}

Changelog

Detailed changes for each release are documented in CHANGELOG.md.

License

MIT © JounQin@1stG.me

Current Tags

  • 3.0.0                                ...           latest (2 years ago)

30 Versions

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