JSFiddle - React, Tailwind, and code Playground

by IllusionMH

HTML

<input type="checkbox" id="out" />
<label for="out">Input OUT</label>

<br /><br /><br /> 

<label><input type="checkbox" id="in" /> Input IN</label>

JavaScript

document.getElementsByTagName("label")[0].onclick = function(e) {
    var src = e.target || e.srcElement;
    alert(e.type + " on " + src.tagName);
};
document.getElementsByTagName("label")[1].onclick = function(e) {
    var src = e.target || e.srcElement;
    alert(e.type + " on " + src.tagName);
};