Answers for "setstate documentation"

state with react functions

class Example extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      count: 0
    };
  }

  render() {
    return (
      <div>
        <p>You clicked {this.state.count} times</p>
        <button onClick={() => this.setState({ count: this.state.count + 1 })}>
          Click me
        </button>
      </div>
    );
  }
}

setstate in react

Functional Component
const [counter, setCounter] = useState(0);

setCouter(counter + 1);

react setState

this.setState({
      date: new Date()
    });