import * as monaco from 'monaco-editor'; self.MonacoEnvironment = { getWorkerUrl: function (moduleId, label) { if (label === 'json') { return './json.worker.bundle.js'; } if (label === 'css') { return './css.worker.bundle.js'; } if (label === 'html') { return './html.worker.bundle.js'; } if (label === 'typescript' || label === 'javascript') { return './ts.worker.bundle.js'; } return './editor.worker.bundle.js'; } }; monaco.editor.create(document.getElementById('container'), { value: ['function x() {', '\tconsole.log("Hello world!");', '}'].join('\n'), language: 'javascript' });