const serviceflight = () => {
return new Promise((resolve) => {
setTimeout(() => {
if (altitude > 650 || alttiude <= 700);
resolve(openflap());
resolve(closegear());
}else {
Promise.try = (reject) => {
try {
serviceflight();
}catch{
reject();
resolve(closeflap());
resolve(opengear());
}
throw new Error("unreachable");
}
},
});
};();