JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<input id="btn1" type="button" value="Click me" onclick="onClickBtn()"/>

JavaScript

function onClickBtn()
{
    alert("Hi");
   var win = window.open('http://www.google.com','_blank','');
    setTimeout(function () {
        win.close();
    }, 5000);
};