JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container">
    <a href="#popup" id="click" data-rel="popup" data-position-to="window" data-transition="fade">click me</a>
</div>

JavaScript

document.getElementById("container").addEventListener("click", b, false);


function b(){
    dlat=40.856771;
    dlng=0.578294;
    alert(dlat);
    getLoc();
 }