$（“：not（selector）”）在普通/普通JavaScript中？[副本]

Question

如何用普通JavaScript编写$（“：not（selector）”）？

var links = $('a:not(.not-lightbox-item a)', this);

<div id="links">
    <div class="not-lightbox-item">
        <a href="projects.html" class="button-back">
            <span class="glyphicon glyphicon-hand-left glyphicon-circle-arrow-leftx" title="Back"></span>
        </a>

        <h2 class="heading item-heading">(Title) Ways of Something</h2>

        <p>Lorem ipsum dolor sit amet <a href="#">Excepteur sint occaecat</a> cupidatat non proident</p>
    </div>

    <a href="images/banana.jpg" title="Banana">
        <img src="images/thumbnails/banana.jpg" alt="Banana">
    </a>
    <a href="images/apple.jpg" title="Apple">
        <img src="images/thumbnails/apple.jpg" alt="Apple">
    </a>
    <a href="images/orange.jpg" title="Orange">
        <img src="images/thumbnails/orange.jpg" alt="Orange">
    </a>
</div>

Answer 1

为什么不切换一个在纯CSS中应用了选择器的类呢？

.className {
  color: blue;
}

var myitem = document.querySelector('.item')
myitem.classList.toggle('className');

我会求助于：不仅仅是在我无法控制HTML的情况下。