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JavaScript React Components Data Flow Update State Based on a Player's Id

Alex Hort-Francis
Alex Hort-Francis
17,074 Points

`props.id` vs `id` in the click event handler callback function.

At 1:00, I'm guessing that using props.id wouldn't have worked; as in:

<button className="counter-action decrement" onClick={() => props.changeScore(props.id, -1)}>

1 Answer

Bella Bradbury
.a{fill-rule:evenodd;}techdegree seal-36
Bella Bradbury
Front End Web Development Techdegree Graduate 32,790 Points


That would also be acceptable! It really comes down to the fact that because you're using props.id multiple times, it makes sense to put it in a variable so that you're not repeating yourself. This would also make it much easier to change your code in the future if needed because you'd only have to change it in one place (the variable) as opposed to at every instance in your code.

Hope this helps!