UMD Web Utilities Library
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    Function addClass

    • Adds one or more CSS classes to an HTML element

      Parameters

      • element: HTMLElement

        The HTML element to add classes to

      • classNames: string | string[]

        Class name(s) to add (space-separated string or array)

      Returns void

      const element = document.querySelector('.my-element');
      addClass(element, 'active');
      addClass(element, 'active visible');
      addClass(element, ['active', 'visible']);

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