Answers for "react componen"

componentDidUpdate

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

react component

/* React Component Template */
export default class MyComponent extends React.Component {
  constructor(props) {
    super(props);
	this.state = {
		//state properties here
	};
  }
  render() {
	return (
		<div></div>
	);
  }
}