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66 lines
2.5 KiB
Markdown
66 lines
2.5 KiB
Markdown
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# acorn-node
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[Acorn](https://github.com/acornjs/acorn) preloaded with plugins for syntax parity with recent Node versions.
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It also includes versions of the plugins compiled with [Bublé](https://github.com/rich-harris/buble), so they can be run on old Node versions (0.6 and up).
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[![npm][npm-image]][npm-url]
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[![travis][travis-image]][travis-url]
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[![standard][standard-image]][standard-url]
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[npm-image]: https://img.shields.io/npm/v/acorn-node.svg?style=flat-square
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[npm-url]: https://www.npmjs.com/package/acorn-node
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[travis-image]: https://img.shields.io/travis/browserify/acorn-node/master.svg?style=flat-square
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[travis-url]: https://travis-ci.org/browserify/acorn-node
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[standard-image]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square
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[standard-url]: http://npm.im/standard
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## Install
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```
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npm install acorn-node
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```
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## Usage
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```js
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var acorn = require('acorn-node')
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```
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The API is the same as [acorn](https://github.com/acornjs/acorn), but the following syntax features are enabled by default:
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- Bigint syntax `10n`
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- Numeric separators syntax `10_000`
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- Public and private class instance fields
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- Public and private class static fields
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- Dynamic `import()`
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- The `import.meta` property
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- `export * as ns from` syntax
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And the following options have different defaults from acorn, to match Node modules:
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- `ecmaVersion: 2019`
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- `allowHashBang: true`
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- `allowReturnOutsideFunction: true`
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```js
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var walk = require('acorn-node/walk')
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```
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The Acorn syntax tree walker. Comes preconfigured for the syntax plugins if necessary.
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See the [acorn documentation](https://github.com/acornjs/acorn#distwalkjs) for details.
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## License
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The files in the repo root and the ./test folder are licensed as [Apache-2.0](LICENSE.md).
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The files in lib/ are generated from other packages:
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- lib/bigint: [acorn-bigint](https://github.com/acornjs/acorn-bigint]), MIT
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- lib/class-private-elements: [acorn-class-private-elements](https://github.com/acornjs/acorn-class-private-elements), MIT
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- lib/dynamic-import: [acorn-dynamic-import](https://github.com/acornjs/acorn-dynamic-import), MIT
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- lib/export-ns-from: [acorn-export-ns-from](https://github.com/acornjs/acorn-export-ns-from), MIT
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- lib/import-meta: [acorn-import-meta](https://github.com/acornjs/acorn-import-meta), MIT
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- lib/numeric-separator: [acorn-numeric-separator](https://github.com/acornjs/acorn-numeric-separator]), MIT
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- lib/static-class-features: [acorn-static-class-features](https://github.com/acornjs/acorn-static-class-features), MIT
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