katex-elements

Web Components for easily using KaTeX in HTML

Installation

> npm i katex-elements

Usage

1. Import the elements

From HTML:

Import all the elements:

<script type="module" src="./node_modules/katex-elements/index.js"></script>

Import each element individually:

<script type="module" src="./node_modules/katex-elements/katex-expr.js"></script>
<script type="module" src="./node_modules/katex-elements/katex-display.js"></script>
<script type="module" src="./node_modules/katex-elements/katex-inline.js"></script>

Note: the path to the JavaScript modules may depend on your npm installation

From JavaScript:

Import all the elements:

import {KatexDisplay} from 'katex-elements';

Import each element individually:

import {KatexDisplay} from 'katex-elements/katex-expr.js';
import {KatexDisplay} from 'katex-elements/katex-display.js';
import {KatexInline} from 'katex-elements/katex-inline.js';

Note that this package uses "bare module specifiers" to import the katex package. You will need a server or bundler that resolves these specifiers to URLs that will work in a browser, such as Rollup or @web/dev-server.

2. Use the elements

<katex-inline>

Renders its text content in inline mode.

markup:

<katex-inline>c = \pm\sqrt{a^2 + b^2}</katex-inline>

output:

<katex-display>

Renders its text content in display mode, which will put the math in display style (so \int and \sum are large, for example), and will center the math in a block element.

markup:

<katex-display>c = \pm\sqrt{a^2 + b^2}</katex-display>

output:

<katex-expr>

<katex-expr> is the base class for <katex-inline> and <katex-display>. It renders inline or display based on the display-mode attribute.

<katex-expr display-mode>c = \pm\sqrt{a^2 + b^2}</katex-expr>