Tell us what’s happening:
Basically, I get the following message with the code as poted below:
The Items component should include a propTypes check that requires quantity to be a number.
If I add the import statement, I get “require is not defined”
If I write it as React.PropTypes.number.isRequired, I get “cannot read property of undefined”.
I tried switching browsers.
Any ideas?
Thanks!
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 = { quantity:
PropTypes.number.isRequired }
// change code above this line
Items.defaultProps = {
quantity: 0
};
class ShoppingCart extends React.Component {
constructor(props) {
super(props);
}
render() {
return <Items />
}
};
Your browser information:
User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36.
Link to the challenge:
https://learn.freecodecamp.org/front-end-libraries/react/use-proptypes-to-define-the-props-you-expect
