DOM Helpers

addClass

Add a class or array of classes to an element.

/**
 * @param {string|string[]} className - The class or classes to add.
 * @param {HTMLElement} element - The element to add the class to.classes.
 */
addClass(className, element);

removeClass

Remove a class or array of classes from an element.

/**
 * @param {string|string[]} className - The class or classes to remove.
 * @param {HTMLElement} element - The element to remove the class from.
 */
removeClass(className, element);