Answers for "react componentdidunmount"

componentDidUpdate

componentDidUpdate(prevProps, prevState) {
  if (prevState.pokemons !== this.state.pokemons) {
    console.log('pokemons state has changed.')
  }
}

how does did componentmount work

class Example extends React.Component {
        componentWillMount() {
            console.log('I am about to say hello');
        }

        render() {
            return <h1>Hello world</h1>;
        }
    }

component did mmount

componentDidUpdate(prevProps, prevState, snapshot)