getDerivedStateFromError Example

getDerivedStateFromError.js

import React , { Component } from 'react';

class CatchError extends Component {
  constructor(props) {
    super(props);
    this.state = { hasError: false };
  }
  static getDerivedStateFromError(error) {
    // if something happens this will update state so the next render will show our fallback UI.
    return { hasError: true };
  }
  render() {
    const { hasError } = this.state;
    const { children } = this.props;
    if (hasError) {
      // render anything you want for fallback ui
      return <h1>Something went wrong.</h1>;
    }
    return children; 
  }
}