ses9.js

render() {
    const {name, email, message} = this.state.fields;

    return (
      <form ref={this.formElement}
            onSubmit={() => this.submitForm()}>
        <input type="text"
               value={name}
               onChange={event => this.onInputChange(event, 'name')}
               name="name"
               id="name" />
        <input type="email"
               value={email}
               onChange={event => this.onInputChange(event, 'email')}
               name="email"
               id="email" />
        <input type="textarea"
               value={message}
               onChange={event => this.onInputChange(event, 'textarea')}
               name="message"
               id="message" />
        <button type="submit">Submit</button>
      </form>
    );
  }