Objective-C
150
Keywords and functions
35
Changes in new versions
10
Type initialization
76
Basic types
51
Arrays and collections
29
Control flow
55
Classes
8
Structures (records)
11
Enumerations
14
Protocols
7
Generic types
12
Functions
13
Lambda expressions
11
Multithreading
8
Exception handling
7
Regular expressions
29
Files
4
Databases
23
Serialization
5
Colors
9
Algorithms
36
Design patterns
7
Extensions
6
Reflection (late binding)