import React from 'react';

class App extends React.Component {
   constructor(props) {
      super(props);
      
      this.state = {
         data: 0
      }
      this.setNewNumber = this.setNewNumber.bind(this)
   };
   setNewNumber() {
      this.setState({data: this.state.data + 1})
   }
   render() {
      return (
         <div>
            <button onClick = {this.setNewNumber}>INCREMENT</button>
            <Content myNumber = {this.state.data}></Content>
         </div>
      );
   }
}
class Content extends React.Component {
   componentWillMount() {
      console.log('Component WILL MOUNT!')
   }
   componentDidMount() {
      console.log('Component DID MOUNT!')
   }
   componentWillReceiveProps(newProps) {    
      console.log('Component WILL RECIEVE PROPS!')
   }
   shouldComponentUpdate(newProps, newState) {
      return true;
   }
   componentWillUpdate(nextProps, nextState) {
      console.log('Component WILL UPDATE!');
   }
   componentDidUpdate(prevProps, prevState) {
      console.log('Component DID UPDATE!')
   }
   componentWillUnmount() {
      console.log('Component WILL UNMOUNT!')
   }
   render() {
      return (
         <div>
            <h3>{this.props.myNumber}</h3>
         </div>
      );
   }
}
export default App;