Math plugin: KaTeX widget for CKEditor 4
npm install katex-ckeditor-pluginKaTeX plugin for CKEditor 4

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- Copy files to the "plugins" folder of CKEditor,
then add config.extraPlugins = 'katex'; in config.js.
Please note, source code is ECMAScript 2016+. If you need to support old
browsers, transpile the code by running npm run build, then use dist/ folder.
- Or use official builder "https://ckeditor.com/cke4/builder".
``js
// [Required] Pathes to the CSS and JS files of katex library.
config.katexLibCss = '';
config.katexLibJs = '';
// Default class of an element that will be converted into a widget.
config.katexClass = 'math-tex';
// List of delimiters to look for math. Each delimiter is array of:
// left delimiter (String), right delimiter (String), display mode (Boolean).
// By default \( and \[ are used, but $ and $$ are also supported.
config.katexDelimiters = [...];
// Additional options to pass into katex.renderToString.``
config.katexOptions = {...};