Objective-C: if (object) Vs. if (object != nil)

Question

Assuming object is a kind of NSObject, the following if statements are equivalent, but which style should I use?

if (object) {
    // ...
}

or

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

Answer 1

As you say, they're equivalent. Thus...

which style should I use?

Whichever one you want.