handleChange method setState syntax

JavaScript
1

Tell us what’s happening:

Why can’t I write the handleChange method like this:

handleChange (event) {
this.setState(state =>
return{ input: event.target.value })
}

Your code so far


class ControlledInput extends React.Component {
constructor(props) {
  super(props);
  this.state = {
    input: ''
  };
  this.handleChange = this.handleChange.bind(this)
}

handleChange (event) {
  this.setState(state => 
{ input: event.target.value })
}

render() {
  return (
    <div>
      <input value={this.state.input} onChange={this.handleChange} />
      <h4>Controlled Input:</h4>
      <p>{this.state.input}</p>
    </div>
  );
}
};

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36.

Challenge: Create a Controlled Input

Link to the challenge:
https://www.freecodecamp.org/learn/front-end-libraries/react/create-a-controlled-input