Function as first class citizens in Swift

Introduction

Functions as First-class members means, it can enjoy privileges just like Objects does. It can be assigned to a variable, passed on to a function as parameter or can be used as return type.

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Functions as first class citizens:

*Function as first class citizens in Swift

*Assigning function to a variable

*Passing function as an argument to another function thus creating a Higher-Order Function

*Function as return type from another function

Table Of Contents

0Getting started

7Error Handling

12Working with C and Objective-C

17Variables, properties

21Memory management

23Advanced operators

24Access control

25Associated objects

29Method swizzling

32Getting started with Protocol Oriented Programming

33Functional programming

34Style convent

36Logging in Swift

39The defer statement

40Design Patterns - Creational

41Swift Package Manager

42NSRegularExpression

43Documentation markup

44AES encryption

45PBKDF2 key derivation

47Cryptographic hashing

48Dependency Injection

49Functions as first class citizens

51Caching on disk space

52Algorithms with Swift

53Unsafe buffer pointers

54Swift Advance functions

55Completion Handler

56Design Patterns - Structural

57Swift HTTP server by Kitura

58Generate UIImage of Initials from string