monaco.diff.App.js

import { DiffEditor } from '@monaco-editor/react';

function App() {
  return (
    <DiffEditor
      height="100vh"
      original={`This line is removed on the right.\njust some text\nabcd\nefgh\nSome more text`}
      modified={`just some text\nabcz\nzzzzefgh\nSome more text.\nThis line is removed on the left.`}
    />
  );
}

export default App;