slightly simplify the example

[capaj]

the example could be simplified:
https://codesandbox.io/s/0yyomw1l4p

but maybe it's just my personal preference. Feel free to just ignore and close this.

[mfpiccolo]

I came here to suggest this. :)

[mweststrate]

Thanks for the suggestion :-). it is what I would probably do as well in practice in this specific case, but if the event handlers are slightly bigger, then extracting a separate function is the more maintainable approach I think, and hence the best practice.