javascript array from htmlcollection code example

Example 1: html collection of elements to array

var boxes = Array.prototype.slice.call(document.getElementsByClassName('box'));

var boxes = [].slice.call(document.getElementsByClassName('box'));

Example 2: html collection of elements to array

<div class="box"></div>
<div class="box"></div>
<div class="box"></div>
<div class="box"></div>

<script>
    const boxes = document.getElementsByClassName('box');
</script>