║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║

---

title: Subscript docs:

• route: /docs/components/mark-toolbar-button title: Mark Toolbar Button

---

<ComponentPreview name="basic-marks-demo" /> <PackageInfo>

Features

• Format text as subscript for mathematical expressions or chemical formulas
• Keyboard shortcut support for quick formatting
• Renders as <sub> HTML element by default

</PackageInfo>

Kit Usage

<Steps>

Installation

The fastest way to add the subscript plugin is with the BasicMarksKit, which includes pre-configured SubscriptPlugin along with other basic marks and their Plate UI components.

<ComponentSource name="basic-marks-kit" />

Add Kit

Add the kit to your plugins:

import { createPlateEditor } from 'platejs/react';
import { BasicMarksKit } from '@/components/editor/plugins/basic-marks-kit';

const editor = createPlateEditor({
  plugins: [
    // ...otherPlugins,
    ...BasicMarksKit,
  ],
});

</Steps>

Manual Usage

<Steps>

Installation

npm install @platejs/basic-nodes

Add Plugin

Include SubscriptPlugin in your Plate plugins array when creating the editor.

import { SubscriptPlugin } from '@platejs/basic-nodes/react';
import { createPlateEditor } from 'platejs/react';

const editor = createPlateEditor({
  plugins: [
    // ...otherPlugins,
    SubscriptPlugin,
  ],
});

Configure Plugin

You can configure the SubscriptPlugin with custom keyboard shortcuts.

import { SubscriptPlugin } from '@platejs/basic-nodes/react';
import { createPlateEditor } from 'platejs/react';

const editor = createPlateEditor({
  plugins: [
    // ...otherPlugins,
    SubscriptPlugin.configure({
      shortcuts: { toggle: { keys: 'mod+comma' } },
    }),
  ],
});

• shortcuts.toggle: Defines a keyboard shortcut to toggle subscript formatting.

Add Toolbar Button

You can add MarkToolbarButton to your Toolbar to toggle subscript formatting.

</Steps>

Plugins

SubscriptPlugin

Plugin for subscript text formatting. Renders as <sub> HTML element by default.

Transforms

tf.subscript.toggle

Toggles the subscript formatting for the selected text.

║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║
║