PropTypes in React

• Used for validating the types of props passed to a component. Used to help developers catch errors early in the development stages. Should be used before implementing functionality.

• Installing. Use in development mode because it will have overhead depending on how much you use.

    npm install --save-dev prop-types

• Using in component

    import PropTypes from 'prop-types';

    const Component = (props) => {
        //Use props here
        //Expecting a name(string) and number
    }

    //Will check if props contains name and number
    //Also checks if those values match the data type
    //If not matching then returns a warning in console
    Component.propTypes = {
        name: PropTypes.string.isRequired,
        number: PropTypes.number.isRequired,
    }