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https://github.com/micromark/micromark-extension-mdx

micromark extension to support MDX (agnostic to JavaScript)
https://github.com/micromark/micromark-extension-mdx

expression jsx markdown md mdx mdxjs micromark micromark-extension

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micromark extension to support MDX (agnostic to JavaScript)

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README 

        
# micromark-extension-mdx



[![Build][build-badge]][build]

[![Coverage][coverage-badge]][coverage]

[![Downloads][downloads-badge]][downloads]

[![Size][size-badge]][size]

[![Sponsors][sponsors-badge]][collective]

[![Backers][backers-badge]][collective]

[![Chat][chat-badge]][chat]



[micromark][] extensions to support [MDX][mdxjs], unaware of JavaScript.



## Contents



* [What is this?](#what-is-this)

* [When to use this](#when-to-use-this)

* [Install](#install)

* [Use](#use)

* [API](#api)

  * [`mdx()`](#mdx)

* [Authoring](#authoring)

* [Syntax](#syntax)

* [Errors](#errors)

* [Types](#types)

* [Compatibility](#compatibility)

* [Security](#security)

* [Related](#related)

* [Contribute](#contribute)

* [License](#license)



## What is this?



This package contains an extension that adds support for the syntax enabled

by [MDX][mdxjs] to [`micromark`][micromark].

This extension is used inside MDX.

It supports expressions, JSX, and turns some markdown features off.

It is not aware of the syntax of JavaScript inside expressions and does not

support export/imports.



## When to use this



You can use this extension when you are working with [`micromark`][micromark].



This project is useful when you want to support MDX, unaware of JavaScript, for

example because expressions can include Rust or variables or whatnot.

If you want to be aware of JavaScript, use

[`micromark-extension-mdxjs`][micromark-extension-mdxjs].



Alternatively, you can also use the underlying syntax extensions separately:



* [`micromark-extension-mdx-expression`][micromark-extension-mdx-expression]

  — support MDX expressions

* [`micromark-extension-mdx-jsx`][micromark-extension-mdx-jsx]

  — support MDX JSX

* [`micromark-extension-mdx-md`][micromark-extension-mdx-md]

  — turn some CommonMark features off



When you need a syntax tree, combine this package with

[`mdast-util-mdx`][mdast-util-mdx].



All these packages are used in [`remark-mdx`][remark-mdx], which focusses on

making it easier to transform content by abstracting these internals away.



## Install



This package is [ESM only][esm].

In Node.js (version 16+), install with [npm][]:



```sh

npm install micromark-extension-mdx

```



In Deno with [`esm.sh`][esmsh]:



```js

import {mdx} from 'https://esm.sh/micromark-extension-mdx@2'

```



In browsers with [`esm.sh`][esmsh]:



```html



  import {mdx} from 'https://esm.sh/micromark-extension-mdx@2?bundle'



```



## Use



```js

import {micromark} from 'micromark'

import {mdx} from 'micromark-extension-mdx'



const output = micromark('a  c {1 + 1} d', {extensions: [mdx()]})



console.log(output)

```



Yields:



```html

a  c  d


```



…which is useless: go to a syntax tree with

[`mdast-util-from-markdown`][mdast-util-from-markdown] and

[`mdast-util-mdx`][mdast-util-mdx] instead.



## API



This package exports the identifier [`mdx`][api-mdx].

There is no default export.



The separate extensions support the [`development` condition][development].

Run `node --conditions development module.js` to get instrumented dev code.

Without this condition, production code is loaded.



### `mdx()`



Create an extension for `micromark` to enable MDX syntax, unaware of JavaScript.



###### Returns



Extension for `micromark` that can be passed in `extensions` to enable MDX

syntax, unaware of JavaScript ([`Extension`][micromark-extension]).



## Authoring



For recommendations on how to author MDX, see each corresponding readme:



* [expressions](https://github.com/micromark/micromark-extension-mdx-expression/tree/main/packages/micromark-extension-mdx-expression#authoring)

* [JSX](https://github.com/micromark/micromark-extension-mdx-jsx#authoring)

* [CommonMark features not in MDX](https://github.com/micromark/micromark-extension-mdx-md#authoring)



## Syntax



For info on the syntax of these features, see each corresponding readme:



* [expressions](https://github.com/micromark/micromark-extension-mdx-expression/tree/main/packages/micromark-extension-mdx-expression#syntax)

* [JSX](https://github.com/micromark/micromark-extension-mdx-jsx#syntax)

* CommonMark features not in MDX: n/a



## Errors



For info on what errors are thrown, see each corresponding readme:



* [expressions](https://github.com/micromark/micromark-extension-mdx-expression/tree/main/packages/micromark-extension-mdx-expression#errors)

* [JSX](https://github.com/micromark/micromark-extension-mdx-jsx#errors)

* CommonMark features not in MDX: n/a



## Types



This package is fully typed with [TypeScript][].

It exports no additional types.



## Compatibility



Projects maintained by the unified collective are compatible with maintained

versions of Node.js.



When we cut a new major release, we drop support for unmaintained versions of

Node.

This means we try to keep the current release line,

`micromark-extension-mdx@^2`, compatible with Node.js 16.



This package works with `micromark` version `3` and later.



## Security



This package is safe.



## Related



* [`micromark-extension-mdxjs`][micromark-extension-mdxjs]

  — support MDX aware of JS

* [`mdast-util-mdx`][mdast-util-mdx]

  — support MDX in mdast

* [`remark-mdx`][remark-mdx]

  — support MDX syntax in remark



## Contribute



See [`contributing.md` in `micromark/.github`][contributing] for ways to get

started.

See [`support.md`][support] for ways to get help.



This project has a [code of conduct][coc].

By interacting with this repository, organization, or community you agree to

abide by its terms.



## License



[MIT][license] © [Titus Wormer][author]



[build-badge]: https://github.com/micromark/micromark-extension-mdx/workflows/main/badge.svg



[build]: https://github.com/micromark/micromark-extension-mdx/actions



[coverage-badge]: https://img.shields.io/codecov/c/github/micromark/micromark-extension-mdx.svg



[coverage]: https://codecov.io/github/micromark/micromark-extension-mdx



[downloads-badge]: https://img.shields.io/npm/dm/micromark-extension-mdx.svg



[downloads]: https://www.npmjs.com/package/micromark-extension-mdx



[size-badge]: https://img.shields.io/badge/dynamic/json?label=minzipped%20size&query=$.size.compressedSize&url=https://deno.bundlejs.com/?q=micromark-extension-mdx



[size]: https://bundlejs.com/?q=micromark-extension-mdx



[sponsors-badge]: https://opencollective.com/unified/sponsors/badge.svg



[backers-badge]: https://opencollective.com/unified/backers/badge.svg



[collective]: https://opencollective.com/unified



[chat-badge]: https://img.shields.io/badge/chat-discussions-success.svg



[chat]: https://github.com/micromark/micromark/discussions



[npm]: https://docs.npmjs.com/cli/install



[esmsh]: https://esm.sh



[license]: license



[author]: https://wooorm.com



[contributing]: https://github.com/micromark/.github/blob/main/contributing.md



[support]: https://github.com/micromark/.github/blob/main/support.md



[coc]: https://github.com/micromark/.github/blob/main/code-of-conduct.md



[esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c



[typescript]: https://www.typescriptlang.org



[development]: https://nodejs.org/api/packages.html#packages_resolving_user_conditions



[micromark]: https://github.com/micromark/micromark



[micromark-extension]: https://github.com/micromark/micromark#syntaxextension



[micromark-extension-mdxjs]: https://github.com/micromark/micromark-extension-mdxjs



[micromark-extension-mdx-expression]: https://github.com/micromark/micromark-extension-mdx-expression



[micromark-extension-mdx-jsx]: https://github.com/micromark/micromark-extension-mdx-jsx



[micromark-extension-mdx-md]: https://github.com/micromark/micromark-extension-mdx-md



[mdast-util-from-markdown]: https://github.com/syntax-tree/mdast-util-from-markdown



[mdast-util-mdx]: https://github.com/syntax-tree/mdast-util-mdx



[remark-mdx]: https://mdxjs.com/packages/remark-mdx/



[mdxjs]: https://mdxjs.com



[api-mdx]: #mdx