(I think i done correct but...)Manage State Locally First

JavaScript
1

Tell us what’s happening:

Anybody able to help me spot my mistake?

Your code so far


class DisplayMessages extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      input: '',
      messages: []
    }
    this.handleChange = this.handleChange.bind(this);
    this.submitMessage = this.submitMessage.bind(this)
  }
  // add handleChange() and submitMessage() methods here

  handleChange(a) {
    this.setState ({
     input : a.target.value 
    })
  }

  submitMessage() {
      this.setState({
        messages:  this.state.messages.concat(this.state.input),
        input : ''
      })
  }

  render() {
    return (
      <div>
        <h2>Type in a new Message:</h2>
        { /* render an input, button, and ul here */ }    <input value = {this.state.input} onClick={this.handleChange}/>
        <button type ="button" onClick={this.submitMessage}>Add message</button>
        <ul>
        {this.state.messages.map(messages =>
        <li>{messages}
        </li>)}
        </ul>

        { /* change code above this line */ }
      </div>
    );
  }
};

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36.

Link to the challenge:

2

Take a closer look on this part:
<input value = {this.state.input} onClick={this.handleChange}/>
After that try to say out loud what this element should be doing and you will understand the problem instantly.

3

The problem is that it is not possible to type in the input box. This is because it has an onClick listener assigned instead of an onChange listener.