dynamic_input_2.1.js

import React, { Component } from 'react';

class App extends Component {
  state = { 
    inputs: [],
    showState: false
  };

  handleSubmit = (event) => {
    event.preventDefault(); 
    this.setState(prevState => ({
      showState: true
    }));
  }
   
  render() {
    return (
      <div className='App'>
        <form onSubmit={this.handleSubmit}>
          <button type='submit'>Submit</button>
        </form>
      </div>
    );
  }
}