What are the differences between PropTypes and TypeScript types in React?

What are the differences between PropTypes and TypeScript types in React?

PropTypes is a runtime type-checking tool for React props, while TypeScript types provide compile-time type checking.

Can you give me an example of how to use both in a React component?

Sure! Here's a simple example:

import PropTypes from 'prop-types';

const MyComponent = ({ name }: { name: string }) => {
  return <div>Hello, {name}!</div>;
};

MyComponent.propTypes = {
  name: PropTypes.string.isRequired,
};

When should I use PropTypes instead of TypeScript?

You might use PropTypes for legacy projects or when you want runtime validation, while TypeScript is better for type safety during development.

Are there any performance implications of using PropTypes?

Yes, using PropTypes can introduce a slight performance overhead since it checks types at runtime, unlike TypeScript which checks at compile time.