DOMTokenList on MDN
Creates a new instance of DOMTokenList.
The accessor that reads and writes the class string to the element.
DOMTokenList.length on MDN
DOMTokenList.value on MDN
DOMTokenList.add on MDN
DOMTokenList.contains on MDN
Optional
DOMTokenList.forEach on MDN
DOMTokenList.item on MDN
DOMTokenList.remove on MDN
DOMTokenList.replace on MDN
DOMTokenList.toggle on MDN
See
DOMTokenList on MDN