What is the difference between short notation if with brackets and without?

Question

JavaScript

What is different, for example:

save ? save.addEventListener("click", () => ShowSpinButton('edit_labels')) : null

From:

(save) ? save.addEventListener("click", () => ShowSpinButton('edit_labels')) : null

Answer 1

Nothing.
Parentheses are needed to group and change the priority of operations. In this case, inside the brackets is a degenerate expression from one variable.