Question

While checking whether an object is nil, someone use 1:

if (object == nil) {
    //...
}

someone use 2:

if (nil == object) {
    //...
}

Any difference between 1 and 2? Which one is better?

Answer 1

The difference is mainly that if you mistakingly forget a = e.g like this

 (nil = myObject)

you will get an error cause you can’t assign a value to nil. So it is some kind of faile-safe.