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¿Cómo enviar un formulario usando la tecla Intro en react.js?

Question

Aquí está mi formulario y el método onClick. Me gustaría ejecutar este método cuando se presiona el botón Enter del teclado. Cómo ?

NB: No se aprecia jquery.

 comment: function (e) {
        e.preventDefault();
        this.props.comment({comment: this.refs.text.getDOMNode().value, userPostId:this.refs.userPostId.getDOMNode().value})
    },


 <form className="commentForm">
     <textarea rows="2" cols="110" placeholder="****Comment Here****" ref="text"  /><br />
    <input type="text" placeholder="userPostId" ref="userPostId" /> <br />
     <button type="button" className="btn btn-success" onClick={this.comment}>Comment</button>
    </form>

Answer 1

Cambie <button type="button" a <button type="submit" . Elimina el onClick . En su lugar, haga <form className="commentForm" onSubmit={this.onCommentSubmit}> . Esto debería coger haciendo clic en el botón y presionando la tecla de retorno.

onFormSubmit = e => {
  e.preventDefault();
  const { name, email } = this.state;
  // send to server with e.g. `window.fetch`
}

...

<form onSubmit={this.onFormSubmit}>
  ...
  <button type="submit">Submit</button>
</form>

Answer 2

Use el evento keydown para hacerlo:

   input: HTMLDivElement | null = null;

   onKeyDown = (event: React.KeyboardEvent<HTMLDivElement>): void => {
      // ''keypress'' event misbehaves on mobile so we track ''Enter'' key via ''keydown'' event
      if (event.key === ''Enter'') {
        event.preventDefault();
        event.stopPropagation();
        this.onSubmit();
      }
    }

    onSubmit = (): void => {
      if (input.textContent) {
         this.props.onSubmit(input.textContent);
         input.focus();
         input.textContent = '''';
      }
    }

    render() {
      return (
         <form className="commentForm">
           <input
             className="comment-input"
             aria-multiline="true"
             role="textbox"
             contentEditable={true}
             onKeyDown={this.onKeyDown}
             ref={node => this.input = node} 
           />
           <button type="button" className="btn btn-success" onClick={this.onSubmit}>Comment</button>
         </form>
      );
    }