How to check if a DOM element has a class
How do you check if a particular DOM element you have the reference of, has a class?
Use the contains method provided by the classList object, which is:
element.classList.contains('myclass')
Technically, classList is an object that satisfies the DOMTokenList interface, which means it implements its methods and properties.
You can see its details on the DOMTokenList MDN page.
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