How to implement a component constructor to initialize state

Question

Can you tell me How to implement a component constructor to initialize state?

Answer 1

To implement a component constructor to initialize state in a class component:

import React, { Component } from 'react';

class Welcome extends Component {

  constructor(props) {

    super(props);

    this.state = {

      message: 'Welcome!'

    };

  }

  render() {

    return <h1>{this.state.message}</h1>;

  }

}

export default Welcome;