JSFiddle - React, Tailwind, and code Playground
by jfriend00
HTML
<div name="button"></div>
<div name="link"></div>
<div name="button"></div>
<div name="link"></div>
<div name="button"></div>
JavaScript
var b = document.getElementsByName("button");
var l = document.getElementsByName("link");
var copyB = Array.prototype.slice.call(b, 0);
var copyL = Array.prototype.slice.call(l, 0);
var combined = copyB.concat(copyL);
alert(combined.length);