import {Controller} from "@hotwired/stimulus"; import katex from "katex"; import "katex/dist/katex.css"; /* stimulusFetch: 'lazy' */ export default class extends Controller { static targets = ["input", "preview"]; updatePreview() { katex.render(this.inputTarget.value, this.previewTarget, { throwOnError: false, }); } connect() { this.updatePreview(); this.inputTarget.addEventListener('input', this.updatePreview.bind(this)); } }