Passing Arguments to Event Handlers using data-*

Currently the documentation https://reactjs.org/docs/handling-events.html mentions two ways how to handle events when the event handler function needs a parameter:

<button onClick={(e) => this.deleteRow(id, e)}>Delete Row</button>
<button onClick={this.deleteRow.bind(this, id)}>Delete Row</button>

As far as I understand, both variants create a new function on each render, which might lead to performance issues because of unnecessary re-renders (you might have to implement custom logic in shouldComponentUpdate). In the documentation:

We generally recommend binding in the constructor or using the class fields syntax, to avoid this sort of performance problem.

Not mentioned is using a "data'*" HTML attribute and then use that event property in the handler.
I would like to document this variant – or if it is not recommended, document that (and why) this is not recommended.

See also https://github.com/facebook/react/issues/1259

If you consider this worth documenting I will create a PR.

Inizia dalla pagina di documentazione handling-events e rivedi i due pattern esistenti per passare argomenti ai gestori degli eventi, quindi considera l’approccio data-* proposto insieme alla issue React collegata. Il lavoro è completato quando la pagina raccomanda o rifiuta chiaramente questa variante e spiega il motivo.