lazy_react.js

// Before 

import OtherComponent from './OtherComponent';

function MyComponent() {
  return (
    <div>
      <OtherComponent />
    </div>
  );
}

// After

const OtherComponent = React.lazy(() => import('./OtherComponent'));

function MyComponent() {
  return (
    <div>
      <Suspense fallback={<div>Loading...</div>}>
        <OtherComponent />
      </Suspense>
    </div>
  );
}