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JavaScript Auto User Search with JavaScript

Crystal Vesely
Crystal Vesely
15,093 Points
Posted by Crystal Vesely
Crystal Vesely
15,093 Points

Why does classList.add() not add the "expanded" and "show" class multiple times each time the addEventListener is called

Hello, I am sure I'm seeing this incorrectly, but why does the classList.add() not continuously add the "expanded" and "show" class each time the addEventListener is triggered? I

1 Answer

Steven Parker
Steven Parker
243,861 Points
Steven Parker
Steven Parker
243,861 Points

As found on MDN:

The add() method of the DOMTokenList interface adds the given tokens to the list, omitting any that are already present.