javascript classlist remove all code example

Example 1: add multiple class list at once in js

elem.classList.add("first");
elem.classList.add("second");
elem.classList.add("third");

is equal to :

elem.classList.add("first","second","third");

Example 2: add multiple classList

element.classList.add(class1,class2,class3...);

Example 3: javascript clear classList

element.classList.remove(...element.classList);

Example 4: classlist

// use the classList API to remove and add classes
div.classList.remove("foo");
div.classList.add("anotherclass");