Difference between className and classList - Stack Overflow
Sep 28, 2021 · I have just known one thing difference between className and classList. className returns string within they are names of the current element and classList also returns names but as …
javascript - Clear element.classList - Stack Overflow
Feb 23, 2013 · element.classList is of DOMTokenList type. Is there a method to clear this list?
Is there a way to add/remove several classes in one single instruction ...
Jun 20, 2012 · The classList property ensures that duplicate classes are not unnecessarily added to the element. In order to keep this functionality, if you dislike the longhand versions or jQuery version, I'd …
How exactly does element.classList.contains() work in JavaScript?
Dec 19, 2014 · How exactly does element.classList.contains () work in JavaScript? Asked 11 years, 1 month ago Modified 4 years, 9 months ago Viewed 36k times
javascript - Qual a diferença entre usar className, classList.toggle ...
Jan 28, 2021 · Além de toggle, o objeto classList possui vários outros métodos de "conveniência" para o manejo de classes, como classList.add ou classList.remove. Não existe comparação direta entre …
Why doesn't .includes () work with .classList? - Stack Overflow
Jun 1, 2016 · element.classList returns an array of classes, its my understanding .includes() is used with arrays, so I don't understand why this wont work, I know I can use .contains() with classList but I'm cu...
TypeError: Cannot read property 'classList' of null
Oct 20, 2018 · I am getting an error TypeError: Cannot read property 'classList' of null I am not really sure what am I doing wrong in manipulating DOM element for each form field.
javascript - Checking classList with contains if a class exists before ...
May 3, 2016 · There might be a small performance impact not calling contains() before remove() if you're dealing with many elements of which you are unsure whether the class is present or not. See …
What's the difference between className and classList.value?
Jul 16, 2024 · These are essentially the same; except that the classList itself is a space-delimited string and allows for easy toggling of individual classes.
Check if an element contains a class in JavaScript?
Using plain JavaScript (not jQuery), Is there any way to check if an element contains a class? Currently, I'm doing this: var test = document.getElementById("test"); var testClass = test.cla...