JSFiddle - React, Tailwind, and code Playground

HTML

<div id="result">
</div>

JavaScript

Number.prototype[Symbol.iterator] = function *() {
   for(let i = 0; i <= this; i++)
       yield i;
}

document.querySelector('#result').innerText += [...8];
document.querySelector('#result').innerHTML += '<br/>';
document.querySelector('#result').innerText += [...8] instanceof Array;