React Events

import React, { Component ) from 'react';

class Form extends Component {
  constructor() {
    super();
    this.handleSubmit = this.handleSubmit.bind(this);
  }
  
  handleSubmit() {
    alert('Form submission');
  }
  
  render() {
    return(
      <form onSubmit={this.handleSubmit}>
        <input type="text" placeholder="Username" />
        <input type="password" placeholder="Password" />
        <button type="submit">Submit</button>
      </form>
    );
  }
}

export default Form;