JSFiddle - React, Tailwind, and code Playground

by David Thomas

HTML

<button id="checkBoxes">check the checkboxes</button>
<input type="checkbox" />
<input type="checkbox" />
<input type="checkbox" />
<input type="checkbox" />
<input type="checkbox" />

CSS

button {
    display: block;
}

JavaScript

function checkedBoxes() {
    return document.querySelectorAll('input:checked').length === 0 ? false : true;
}

document.getElementById('checkBoxes').onclick = function(e){
    e.preventDefault();
    console.log(checkedBoxes());
};