---
id: documentation-formatting
title: Formatting Tips
---

This page provides recommendations on the use of a variety of Markdown features that help you create properly formatted documentation.

## Subsections

Use regular H2..H6 markdown headings for subsections.

```markdown
## Level 2 title

### Level 3 title

#### Level 4 title
```

```diff
- **Testing complex components**
+ ### Testing complex components
```

:::tip

* The page title will implicitly be formatted with H1, so start with H2.

* Headings appear in the Table of Contents, which gives the reader an overview of the page and assists with navigation.
:::

## Backticks

Use Markdown backticks ( \` \), to provide emphasis for items such as file names, classes, methods, parameters, and expressions.

```markdown
Let's use the `TestComponent`, which has one direct child, `InnerComponent`, and one non-direct child, `Text`.
```

**Result**:
Let's use the `TestComponent`, which has one direct child, `InnerComponent`, and one non-direct child, `Text`.

## Code Snippets

For code snippets, remember to add the language tag (`javascript` is used in the following example).

````markdown
```javascript
import {addPlugin} from "react-native-flipper"

addPlugin({
  getId() {
    return 'ReactNativeExamplePlugin';
  },
  onConnect(connection) {
    mammmals.forEach(({ title, pictureUrl }, index) => {
      connection.send('newRow', {
          id: index,
          title,
          url: pictureUrl
      })
    })
  },
  onDisconnect() {
  }
})
````

**Result:**

```javascript
import {addPlugin} from "react-native-flipper"

addPlugin({
  getId() {
    return 'ReactNativeExamplePlugin';
  },
  onConnect(connection) {
    mammmals.forEach(({ title, pictureUrl }, index) => {
      connection.send('newRow', {
          id: index,
          title,
          url: pictureUrl
      })
    })
  },
  onDisconnect() {
  }
})
```

For more code blocks features, such as line highlighting, see the Docusaurus [Code blocks](https://docusaurus.io/docs/markdown-features/code-blocks) document.

## Links

Docusaurus supports regular Markdown links with absolute URLs, relative URLs, and relative file paths.

However, due to the [trailing slash issue](https://github.com/facebook/docusaurus/pull/4908), it's strongly recommended to link to page files (including their extension) instead of the page's URL.

```diff
- Don't link to markdown page URLs: [Create a page](create-a-page).
+ Create links using full file names: [Create a page](create-a-page.md).
other text
- [Create internal only document](contributing-documentation#internal-only-content]
+ [Create internal only document](contributing-documentation.md#internal-only-content]
```

:::tip
Don't use absolute or internal docs links.
With relative links, the Static Docs engine will automatically use the right host depending on whether docs are accessed externally or internally.
:::

## Tabs

To organize content in tabs, Docusaurus provides the `Tabs` React component:

```javascript
import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';

<Tabs
  groupId="platform"
  defaultValue="iOS"
  values={[
    {label: 'iOS', value: 'ios'},
    {label: 'Android', value: 'android'},
  ]}>
  <TabItem value="ios">
    Information about Flipper on iOS.
  </TabItem>
  <TabItem value="android">
    Information about Flipper on Android.
  </TabItem>
</Tabs>
```

import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';

**Result:**
<Tabs
  groupId="platform"
  defaultValue="ios"
  values={[
    {label: 'iOS', value: 'ios'},
    {label: 'Android', value: 'android'},
  ]}>
  <TabItem value="ios">
    Information about Flipper on iOS.
  </TabItem>
  <TabItem value="android">
    Information about Flipper on Android.
  </TabItem>
</Tabs>

:::tip
To sync several `Tabs` components on the website set the same `groupId` for them. More info in
Docusaurus [Tabs Syncing](https://docusaurus.io/docs/markdown-features/tabs#syncing-tab-choices) docs.
:::

## Resources

For additional information, see the following resources:

* [StaticDocs Markdown features](https://www.internalfb.com/intern/staticdocs/staticdocs/docs/documenting/markdown-features)
* [Docusaurus Markdown features](https://docusaurus.io/docs/markdown-features)