JSFiddle - React, Tailwind, and code Playground

HTML

<p>Array constructor <span>not</span> activated.</p>

CSS

span {
    font-weight: bold;
}

p.activated span {
    display: none;
}

JavaScript

Array = function() {
    document.getElementsByTagName("p")[0].className = "activated";
}

var trigger = [1, 2, 3];