sample-login5.js

export default class Login extends Component {
  changeUsername (event) {
    this.props.fieldChange('username', event.target.value);
  }
  changePassword (event) {
    this.props.fieldChange('password', event.target.value);
  }

  render () {
    return (
        <form className={authStyles.form} onSubmit={this.props.onSubmit}>
            <input type='text' name='username' placeholder='Username'value={this.props.username}
              onChange={this.changeUsername}
            />
            <input
              type='password'
              name='password'
              placeholder='Password'
              value={this.props.password}
              onChange={this.changePassword}
            />
        </form>
    );
  }
}