Apple SWIFT: Why and why not? (Part 1) - 2n2Media

More than one year ago, Apple released a test version of their new programming language, which marked the new age of mobile application development. Any developer, as recommended in the below article, should be aware of two sides of this safe, fast and interactive language. Mobile Application Development Company in Singapore will give you a quick look at “Why” and “Why not” developers build their app on Apple’s new language named SWIFT.
If you still have no idea why switching to SWIFT is a step that any developer should take, below are three reasons for “Why”.

#1 Safety

Unsafe code is the first one SWIFT aims to eliminate. Variables are always initialized before use, arrays and integers are checked for overflow, and memory is managed automatically. Syntax is tuned to make it easy to define your intent — for example, simple three-character keywords define a variable ( var ) or constant ( let ).
Another safety feature is that by default Swift objects can never be nil. In fact, the Swift compiler will stop you from trying to make or use a nil object with a compile-time error. This makes writing code much cleaner and safer, and prevents a huge category of runtime crashes in your apps. However, there are cases where nil is valid and appropriate. For these situations Swift has an innovative feature known as optional. An optional may contain nil, but Swift syntax forces you to safely deal with it using the “?” syntax to indicate to the compiler you understand the behavior and will handle it safely.

#2 Fast and Powerful

Fast is the earliest concept for this new programming language. It’s easily found in the name. Using the incredibly high-performance LLVM compiler, Swift code is transformed into optimized native code that gets the most out of modern hardware. The syntax and standard library have also been tuned to make the most obvious way to write your code also perform the best.

Swift is a successor to both the C and Objective-C languages. It includes low-level primitives such as types, flow control, and operators. It also provides object-oriented features such as classes, protocols, and generics giving Cocoa and Cocoa Touch developers the performance and power they demand.

#3 Interactive Playgrounds

What is better than playing while working? SWIFT makes good compatibility with Playgrounds, which turns writing code out fun and simple. Type a line of code and the result appears immediately. You can then Quick Look the result from the side of your code, or pin that result directly below. The result view can display graphics, lists of results, or graphs of a value over time. You can open the Timeline Assistant to watch a complex view evolve and animate, great for experimenting with new UI code, or to play an animated SpriteKit scene as you code it. When you’ve perfected your code in the playground, simply move that code into your project.
And new in Xcode 7, playgrounds can contain comments that use rich text with bold, italic, and bullet lists in addition to embedded images and links. You can even embed resources and supporting Swift source code in the playground to make the experience incredibly powerful and engaging, while the visible code remains simple.

-Source: Apple SWIFT: Why and why not? (Part 1)