JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://t4t5.github.io/sweetalert/dist/sweetalert-dev.js"></script>
<link rel="stylesheet" href="https://t4t5.github.io/sweetalert/dist/sweetalert.css">
<button>Button</button>

JavaScript

$("button").on("click", function() {
    var win = window.open("", "Chart", "width=400,height=400");
    win.console.log("New window");
    win.callFunc = function(fn) {
        win.console.log(fn());
    }
    win.callFunc(aParentFunction);   
});

function aParentFunction() {
    return "Hiya, I am your dad.";
}