Detect the most common platforms, including ipadOS

platforms.js

var is_windows = navigator.platform.indexOf('Mac') > -1;
var is_macOS = false;
var is_ipadOS = false;
var is_iOS = /(iPhone|iPod)/i.test(navigator.platform);
var is_Android = navigator.platform.indexOf('Android') > -1;
var is_Linux = navigator.platform.indexOf('Linux') > -1;

if (navigator.platform.indexOf('Mac') > -1) {
    if (navigator.maxTouchPoints > 1)
        is_ipadOS = true
    else
        is_macOS = true;
}