Swift Programming Language

 

Introduction

Swift is a general-purpose, multi-paradigm, object-oriented, functional, vital and block-dependent language. Swift is the end result of the brand new studies on programming languages and is constructed the usage of a cutting-edge technique to safety, software program layout styles with the aid of using Apple Inc. for iOS applications, macOS applications, rtc.

Swift is simple to learn, smooth to implement, safe, speedy and expressive. Developing Swift withinside the open has its thrilling factors as it's far now loose to be ported throughout a huge variety of platforms, devices, and use cases.

The capabilities of Swift are designed to paintings collectively to create a effective language. Swift include:

• Closures unified with function pointers
• Tuples and multiple return values
• Concise and fast iteration over a range or collection
• Structs that support methods, extensions, and protocols
• Functional programming patterns, e.g., map and filter

Memory Management

Swift makes use of Automatic Reference Counting (ARC) to manipulate reminiscence. Earlier, Apple used to require guide reminiscence control in Objective-C, however after introducing ARC in 2011 reminiscence allocation and de-allocation have become easier.

For Example: 

var string1 = "Hi My Dear…!"
var string2 = "How are you?..."
print (string1)
print (string2)

Output: 
 

Hi My Dear…!

How are you?...

Run: Code tested on Online IDE for Swift 
Note: Import statement is used to import any objective-C framework or library directly into Swift program. 
var keyword is a variable. There is no need for”;” for termination, in case the programmer uses it compiler won’t show an error. 

Advantages –

• Swift is open-sourced and smooth to learn.
• Swift is fast, secure and expressive.
• Swift is approachable and familiar (C and C++ code may be introduced with the aid of using Swift programmers into Swift applications.)
• Swift is the destiny of Apple development.

Disadvantages –

• The language continues to be pretty younger and the expertise pool is limited.
•  Swift is taken into consideration a “shifting target” as it's miles a brand new language and the quantity of rapid programmers is few.
• Poor interoperability with third-celebration gear and IDEs
• Lack of guide for in advance iOS versions. 

Learn Swift

• It is used for growing programs for iOS, macOS, watchOS, and so on.
• It is likewise utilized in server programs that offer protection and excessive performance. 
• Swift academic from Programiz - We offer little by little Swift tutorials. Get began out with Swift.
• Official Swift academic - You can study Swift through following the reliable documentation. To study more, go to the reliable Swift academic documentation.
• Practice- The handiest manner you could study programming is through training and writing loads of code.

Swift Program

// Swift "Swift Program Example. My Frist Program." Program

print("Swift Program Example. My Frist Program. ") 

Output

Swift Program Example. My Frist Program.

Note: Frist Swift properly installed and then run this program on your computer.

Swift Comments

In computer programming, comments are hints our code are understandable. Comments are completely ignored by the compiler.

Two types of comments in Swift:

1. // - Single Line comments
2. /*...*/ - Multiline Comments

About Swift Programming

• Open Source - Swift supply code and improvement builds are to be had for everyone.
• Fast and Powerful - Swift programming is speedy and powerful. Also, the supply code is concise but expressive.
• Interoperability - Swift code may be used in conjunction with the present Objective-C projects.