monaco-editor/browser-amd-shared-model/index.html

<!DOCTYPE html>
<html>
	<head>
		<meta http-equiv="X-UA-Compatible" content="IE=edge" />
		<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
	</head>
	<body>
		<h2>Monaco Editor Shared Models Sample</h2>
		<div
			id="container1"
			style="width: 400px; height: 200px; border: 1px solid grey"
		></div>
		<div
			id="container2"
			style="width: 400px; height: 200px; border: 1px solid grey"
		></div>

		<script src="../node_modules/monaco-editor/min/vs/loader.js"></script>
		<script>
			require.config({ paths: { vs: '../node_modules/monaco-editor/min/vs' } });

			require(['vs/editor/editor.main'], function () {
				var model = monaco.editor.createModel(
					['function x() {', '\tconsole.log("Hello world!");', '}'].join('\n'),
					'javascript'
				);
				var editor1 = monaco.editor.create(
					document.getElementById('container1'),
					{
						model: model
					}
				);
				var editor2 = monaco.editor.create(
					document.getElementById('container2'),
					{
						model: model
					}
				);
			});
		</script>
	</body>
</html>