Manage State Locally First help

JavaScript
1

Tell us what’s happening:
my last test is not passing in this? whats wrong in it?

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(event) {
  this.setState({
    input: event.target.value
  });
  }

  submitMessage() {
    let concatMessage = [...this.state.messages,this.state.input];
    this.setState({
      messages: concatMessage,
      input:''
    });
  }

  render() {
    const items = this.state.messages.map((item)=><li key={item.toString()}>{item}</li>);
    return (
      <div>
        <h2>Type in a new Message:</h2>
        { /* render an input, button, and ul here */ }
        <input type="text" value = {this.state.input} onChange = {this.handleChange}/>
        <button onClick = {this.submitMessage}>Add message</button>
        <ul>
         {items}
        </ul>
        { /* change code above this line */ }
      </div>
    );
  }
};

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) 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-and-redux/manage-state-locally-first

2

what does this line do?

Nevermind. I just realised. I’ll try your code…

Edit: hmm. I just cut and pasted your code into my FCC chrome browser and it worked perfectly…
Which browser do you use?

3

concatMessage will add new meassage to the state value of messages
ok its working in chrome and it works in firefox too… thanks, I was using safari and I don’t know why it isn’t passing in it?

4

i guess different browsers don’t support the same apis that FCC code is using. So I suggest you stay with chrome for FCC use.

5

ok thanks now I will stick with chrome