IOS device user Agent and safari browser agent

/*IOS device user Agent */

var device = navigator.userAgent.toLowerCase();

var ios = device.match(/(iphone|ipod|ipad)/);

if (ios){

console.log('Its ios device');

}

/*IOS device user Agent , it's work only safari browser*/

if (navigator.userAgent.indexOf('Safari') != -1 && navigator.userAgent.indexOf('Chrome') == -1) {

setTimeout(function(){

console.log('safari loaded');

jQuery('.fotorama__stage__shaft').css("transform","");

}, 4600);

}

});