JSFiddle - React, Tailwind, and code Playground

by dynamis

JavaScript

var msg = "";
var ua = navigator.userAgent;
msg += "navigator.userAgent = "+ua;
var matches = ua.match(/Android.+Gecko.+Firefox\/(\d+)\./);

if (matches) {
  var version = matches[1];
    msg += "Android Firefox "+version;
} else {
    msg += "not android firefox";
}

var connection = navigator.connection || navigator.mozConnection || navigator.webkitConnection;
if (connection) {
    msg += "\n"+"navigator.connection.bandwidth: "+connection.bandwidth;
} else {
    msg += "Net Info API not supported"
}
alert(msg);