js pour deeplink (déterminer si l'application est installée sur le téléphone)_compétences javascript

>
var isiOS = navigator.userAgent.match('iPad')
|| navigator.userAgent.match('iPhone')
|| , isAndroid = navigator.userAgent
.match('Android'), isDesktop = !isiOS&&!isAndroid;
if (isiOS) {
setTimeout(function () { window.location = "itms-apps : //itunes.apple.com/app/[name]/[id]?mt=8"; },25);
window.location = "[scheme]://[host]?url=" openUrl ;
}else if(isAndroid){
window.location = "intent://[host]/" "url=" openUrl "#Intent;scheme=[scheme];package=[package_name];end ";
}else{
window.location.href = openUrl;
}
})();