Web Reference: For some applications, you can use JavaScript extensions like Flow or TypeScript to typecheck your whole application. But even if you don’t use those, React has some built-in typechecking abilities. To run typechecking on the props for a component, you can assign the special propTypes property: Jul 23, 2025 · PropTypes is a utility library that provides a way to specify the expected data types of props passed to React components. By defining PropTypes for components, developers can catch bugs related to incorrect prop types early during development. You can use prop-types to document the intended types of properties passed to components. React (and potentially other libraries—see the checkPropTypes() reference below) will check props passed to your components against those definitions, and warn in development if they don’t match.
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Use Proptypes Function Components Net Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $45M - $64M
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Last Updated: April 7, 2026
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