gistfile1.txt

import React from 'react';
 
import CoolBox from '../CoolBox';
 
export class Final extends React.Component {
  constructor(props) {
    super(props);
    this.state = { isCool: false }
  }
 
  toggleCoolness = () => {
    this.setState({ isCool: !this.state.isCool })
  }
 
  render() {
    const { isCool } = this.state;
    return (
      <div>
        <button onClick={this.toggleCoolness}>Click Me</button>
        {isCool ? (
          <CoolBox />
        ) : (
          <div></div>
        )}
      </div>
    );
  }
}
 
export default Final;