Why in ObjectiveC there is a "_" before parameter?
3796
How does an underscore in front of a variable in a cocoa objective-c class work?
96527
What is the purpose of the colon before a block in Python?
46448
What is self in ObjC? When should i use it?
122538
Understanding NSString comparison
102641
ObjectiveC: if (obj) {...} AND if (obj != nil) {...}, which is better?
154501
What does (void) 'variable name' do at the beginning of a C function?
71388
Use of * in Objective C Syntax
52623
Variable declaration difference in Objective-C
137536
Dot (".") operator and arrow ("->") operator use in C vs. Objective-C
170
What does the @ symbol before a variable name mean in C#?
54800
Why do I have to write *myPointerVar only SOMETIMES in Objective-C?
130908
Objective-C:  @class Directive before @interface?
48241
Objective-C class names with a +
124143
Error in Obj-C : Expected identifier or '('
29043
Why are Objective-C delegates usually given the property assign instead of retain?
35250
Why is the asterisk before the variable name, rather than after the type?
82425
How to pass pointer to a reference as an argument to a function-Objective C