I thought we should write turnButtonRed(), but why dont we use parentheses here?
When we write
element.onclick = turnButtonRed; what we are doing is assigning the function (
turnButtonRed) to the
onclick event of the
element. So, when we click the button it’ll call the function.
If we wrote
turnButtonRed() as a function call. Your button would immediately be restyled, and the
onclick event for the
element would be
undefined (as that’s the return value of the function).
If you want to see what the difference is, add the parameters to the
onclick line and watch what changes.
“parameters” should be “parentheses”, but I can’t change the post now so…
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