JSFiddle - React, Tailwind, and code Playground

HTML

<form>
    <input id="one" type="checkbox" />
    <input id="two" type="checkbox" />
</form>

JavaScript

var one = $("#one");
var two = $("#two");

one.click(function() {    
    if (one.is(":checked"))  {
        if (two.is(":checked")) {
           alert("foo foo"); 
        } else {
           alert("foo");
        }  
    }
});