[Solved] Check Null value

Question

You should check for (null) just via

if (email == nil) {
    NSLog(@"null2");
}

or just

if (!email) {
    NSLog(@"null1");
}

The NSNull class is there to put null values inside collections that normally use null as a terminator symbol. See the apple docs for further details on the NSNull class.

Accepted Answer

You should check for (null) just via

if (email == nil) {
    NSLog(@"null2");
}

or just

if (!email) {
    NSLog(@"null1");
}

The NSNull class is there to put null values inside collections that normally use null as a terminator symbol. See the apple docs for further details on the NSNull class.