Huntersfox272

Markdown component for React using remark.

• React Markdown Blog
• React Markdown Loader

Learn markdown here and check out the demo here.

Install

• React In Markdown (In React) Update, March 2019: This article is out of date. You can find my article on the new approach, using gatsby-mdx, here. This website is made with Gatsby.js, a static site generator for React. You can look at its source here. Gatsby packages up React components, Markdown files, and other assets, creating bundles of.
• React Markdown Table Generator. Creating Markdown Tables without having to be an ascii art professional. To Run yarn install yarn start Or, npm install npm start.

npm:

Jun 17, 2020 We will run the following command to create a simplest ReactJS named react-markdown-viewer. React-markdown-viewer is just my app’s name, and this will create a new folder and configuration based on the given name, so feel free to change the name to something else you prefer. Npx create-react-app react-markdown-viewer.

Why this one?

There are other ways for markdown in React out there so why use this one?The two main reasons are that they often rely on dangerouslySetInnerHTML orhave bugs with how they handle markdown.react-markdown uses a syntax tree to build the virtual dom which allows forupdating only the changing DOM instead of completely overwriting.react-markdown is 100% CommonMark (optionally GFM) compliant and hasextensions to support custom syntax.

Use

A basic hello world:

Show equivalent JSX

Here is an example using requires, passing the markdown as a string, and howto use a plugin (remark-gfm, which adds support for strikethrough,tables, tasklists and URLs directly):

Show equivalent JSX

API

props

• children (string, default: ')
  Markdown to parse
• className (string?)
  Wrap the markdown in a div with this class name
• allowDangerousHtml (boolean, default: false)
  This project is safe by default and escapes HTML.Use allowDangerousHtml: true to allow dangerous html instead.See security
• skipHtml (boolean, default: false)
  Ignore HTML in Markdown
• sourcePos (boolean, default: false)
  Pass a prop to all renderers with a serialized position(data-sourcepos='3:1-3:13')
• rawSourcePos (boolean, default: false)
  Pass a prop to all renderers with their position(sourcePosition: {start: {line: 3, column: 1}, end:…})
• includeNodeIndex (boolean, default: false)
  Pass index and parentChildCount in props to all renderers
• allowedTypes (Array.<string>, default: list of all types)
  Node types to allow (can’t combine w/ disallowedTypes).All types are available at ReactMarkdown.types
• disallowedTypes (Array.<string>, default: [])
  Node types to disallow (can’t combine w/ allowedTypes)
• allowNode ((node, index, parent) => boolean?, optional)
  Function called to check if a node is allowed (when truthy) or not.allowedTypes / disallowedTypes is used first!
• unwrapDisallowed (boolean, default: false)
  Extract (unwrap) the children of not allowed nodes.By default, when strong is not allowed, it and it’s content is dropped,but with unwrapDisallowed the node itself is dropped but the content used
• linkTarget (string or (url, text, title) => string, optional)
  Target to use on links (such as _blank for <a target='_blank'…)
• transformLinkUri ((uri) => string, default:./uri-transformer.js, optional)
  URL to use for links.The default allows only http, https, mailto, and tel, and isavailable at ReactMarkdown.uriTransformer.Pass null to allow all URLs.See security
• transformImageUri ((uri) => string, default:./uri-transformer.js, optional)
  Same as transformLinkUri but for images
• renderers (Object.<Component>, default: {})
  Object mapping node types to React components.Merged with the default renderers (available at ReactMarkdown.renderers).Which props are passed varies based on the node
• plugins (Array.<Plugin>, default: [])
  List of remark plugins to use.See the next section for examples on how to pass options

Examples

Use a plugin

This example shows how to use a plugin.In this case, remark-gfm, which adds support forstrikethrough, tables, tasklists and URLs directly:

Show equivalent JSX

Use a plugin with options

American megatrends laptops & desktops driver download for windows 10. This example shows how to use a plugin and give it options.To do that, use an array with the plugin at the first place, and the optionssecond.remark-gfm has an option to allow only double tildes for strikethrough:

Show equivalent JSX

Use custom renderers (syntax highlight)

This example shows how you can overwrite the normal handling of a node bypassing a renderer.In this case, we apply syntax highlighting with the seriously super amazingreact-syntax-highlighter by@conorhastings:

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Use a plugin and custom renderers (math)

This example shows how a syntax extension is used to support math in markdownthat adds new node types (remark-math), which are then handled byrenderers to use @matejmazur/react-katex:

Show equivalent JSX

Appendix A: HTML in markdown

react-markdown typically escapes HTML (or ignores it, with skipHtml),because it is dangerous and defeats the purpose of this library.

However, if you are in a trusted environment (you trust the markdown), you canreact-markdown/with-html:

Show equivalent JSX

If you want to specify options for the HTML parsing step, you can instead importthe extension directly:

Appendix B: Node types

The node types available by default are:

• root — Whole document
• text — Text (foo)
• break — Hard break (<br>)
• paragraph — Paragraph (<p>)
• emphasis — Emphasis (<em>)
• strong — Strong (<strong>)
• thematicBreak — Horizontal rule (<hr>)
• blockquote — Block quote (<blockquote>)
• link — Link (<a>)
• image — Image (<img>)
• linkReference — Link through a reference (<a>)
• imageReference — Image through a reference (<img>)
• list — List (<ul> or <ol>)
• listItem — List item (<li>)
• definition — Definition for a reference (not rendered)
• heading — Heading (<h1> through <h6>)
• inlineCode — Inline code (<code>)
• code — Block of code (<pre><code>)
• html — HTML node (Best-effort rendering)
• virtualHtml — If allowDangerousHtml is not on and skipHtml is off, anaive HTML parser is used to support basic HTML
• parsedHtml — If allowDangerousHtml is on, skipHtml is off, andhtml-parser is used, more advanced HTML is supported

With remark-gfm, the following are also available:

• delete — Delete text (<del>)
• table — Table (<table>)
• tableHead — Table head (<thead>)
• tableBody — Table body (<tbody>)
• tableRow — Table row (<tr>)
• tableCell — Table cell (<td> or <th>)

Security

Use of react-markdown is secure by default.Overwriting transformLinkUri or transformImageUri to something insecure orturning allowDangerousHtml on, will open you up to XSS vectors.Furthermore, the plugins you use and renderers Bandrich modems driver download for windows 10. you write may be insecure.

Related

• MDX— JSX in markdown
• remark-gfm— Plugin for GitHub flavored markdown support

React Markdown Blog

Contribute

See contributing.md in remarkjs/.github for waysto get started.See support.md for ways to get help.

This project has a code of conduct.By interacting with this repository, organization, or community you agree toabide by its terms.

License

React Markdown Loader

MIT © Espen Hovlandsdal