Using "classList", you can add or remove a class without affecting any others the element may have. But if you assign "className", ... ... <看更多>

To check if an element contains a class, you use the contains() method of the classList property of the element: element.classList.contains(className);. ... <看更多>

var removeClass = function (elm, className) {. if (document.documentElement.classList) {. removeClass = function (elm, className) {. ... <看更多>

remove( element , className ) → void. Removes a class from an element. This method may throw a DOM exception for an invalid or empty class name if DOMTokenList ... ... <看更多>

Every Element in the DOM has a classList property.With JavaScript, we can control the different CSS ... ... <看更多>

Add `className` and `classList` filters #847. Especially when writing a test suite for components, you want to be able to make certain assertions based on ... ... <看更多>