Use PropTypes to Define the Props You Expect-require is not defined

JavaScript
1

Tell us what’s happening:

I keep getting an error require is not defined, I cannot find a solution, can anyone who had a similar problem help please? And it says in the excersize text to import in the way I did below
´import React, { PropTypes } from ‘react’;´

Your code so far


import React, { PropTypes } from 'react';
const Items = (props) => {
  return <h1>Current Quantity of Items in Cart: {props.quantity}</h1>
};

// change code below this line
Items.propTypes = {
  quantity: React.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 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36.

Link to the challenge:

1 Like
2

You don’t need the first line, it’s already doing it in the background.

Also PropTypes isn’t an object property of React.

So you can remove React in this line.

quantity: React.PropTypes.number.isRequired

1 Like
3

ok, works now, thanks a lot!! :slight_smile:

4

hi this solution is still not working on my browser. My code is as follows

import React, { PropTypes } from 'react';

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

// change code below this line
quantity: React.PropTypes.number.isRequired
// change code above this line

Items.defaultProps = {
  quantity: 0
};


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

I keep getting the same error that

require is not defined

5

@archiejnr

Read carefully what I said in the post.

Also PropTypes isn’t an object property of React.

So you can remove React in this line.

quantity: React.PropTypes.number.isRequired