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why .document.getElementsByClassName(' ') instead of document.querySelector('. ') doesnt work? console shows a mistake
why .document.getElementsByClassName(' ') instead of document.querySelector('. ') doesnt work? console shows a mistake addEventListener is not a function, but when I CHANGE it to queryselector everything works as it should?
Steven Parker216,812 Points
One major difference between these functions is that querySelector returns a reference to a single element, but getElementsByClassName returns an element collection (which is like an array).