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Swift is a multi-paradigm, compiled programming language for designing applications for iOS and macOS, tvOS and watchOS. Apple Inc. is the company behind it. It is a powerful and intuitive language that is also simple to pick up. Swift is an interactive programming language that is quick, safe, and welcoming to new projects. It is based on the Objective C runtime library, which enables the execution of C, Objective C, C++, and Swift code in the same program. Swift has been integrated with Xcode since version 6 and is built with the open-source LLVM compiler and can be used for creating both the front end and back end functionalities of applications.

Swift is the culmination of cutting edge programming language research, as well as decades of expertise developing Apple platforms. Named arguments have a simple syntax that makes Swift APIs (Application Programming Interfaces) considerably easier to learn and manage. Even better is the fact that you do not have to type any semicolons. Modules eliminate headers and offer namespaces, while inferred types MAKE code clearer and less prone to errors. Strings are Unicode correct and use a UTF 8 based encoding to enhance efficiency for a wide range of use cases, so they can handle international languages and emoji. Memory is maintained automatically via strict, deterministic reference counting, which KEEPS memory usage to a minimum while avoiding garbage collection costs.

Features of Swift:

Let us now take a look at some of the features of the Swift Programming language:

• It is open-source and provides inbuilt error handling.
• Memory management is automatic in Swift. Swift expands on its ObjectiveC predecessor with a mechanism called
• Automatic Reference Counting (ARC). The ARC identifies which class instances are not in use and removes them from developers' workspaces. This FREES up time for developers to focus on the application's performance rather than lowering CPU or memory usage.
• Swift provides the feature of Generics that is both EFFECTIVE and easy to use.
• First-class functions and a LIGHTWEIGHT closure syntax are present in Swift which makes it easy to store functions in variables and data structures for the ease of coding.
• Extensions in Swift make developing generic code even easier.
• Iteration over a range of collections in a short and simple manner is possible in Swift.
• Swift supports multiple return values and tuples from functions.
• Methods, extensions, and protocols are supported by structures in Swift.
• Payloads of an enum case are allowed in Swift. Also, pattern matching is supported in Swift.
• Exception handling is possible in Swift.