The Items component should include a propTypes check that requires quantity to be a number

JavaScript
1

Tell us what’s happening:

Your code so far


const Items = (props) => {
  return <h1>Current Quantity of Items in Cart: {props.quantity}</h1>
};

// change code below this line
Items.propTypes={Items:PropTypes.number.isRequired};
// change code above this line

Items.defaultProps = {
  quantity: 0
};

class ShoppingCart extends React.Component {
  constructor(props) {
    super(props);
  }
  render() {
    return <Items quantity={4}/>
  }
};

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/front-end-libraries/react/use-proptypes-to-define-the-props-you-expect/

2

You need to tie PropTypes.number.isRequired not to “Items”. you need to tie it to whatever you are actually checking to be required. You’re not requiring the component, you requiring quantity.

3

got it thanks for the help!

1 Like