in [objective C] whats is better: if(variable) or if(variable != nil)?
102641
ObjectiveC: if (obj) {...} AND if (obj != nil) {...}, which is better?
38401
When should I use  or >()?
92195
Why does isEqualToString not work for NSString?
155515
Always got nil value from the function in iOS
139105
Difference between if () { } and if () : endif;
12323
iPhone : Difference between nil vs Nil and true vs TRUE
56572
Which method performs better: .Any() vs .Count() > 0?
71139
What is the difference between if(CONST==variable) or if(variable==CONST)?
122626
Why isn't my String comparison working in iOS 6?
17037
When are "if" and "whether" equivalent?
105179
Do you prefer "if (var)" or "if (var != 0)"?
81141
What does @"some string" mean in objective-c?
79050
Python ( or general programming ). Why use  instead of != and are there risks?
62074
Which is more effective: if (null == variable) or if (variable == null)?
23756
Why does one often see "null != variable" instead of "variable != null" in C#?
50187
Which "if" construct is faster - statement or ternary operator?
111006
Is this ternary conditional ?: correct (Objective) C syntax?