Swift

Muhammad

Figma

Native iOS mobile app developers skilled in Swift with knowledge of React, Redux and JavaScript frameworks; REST API, LaunchDarkly and Jetpack Compose. Find Swift WFH freelancers on January 21, 2025 who work remotely. Read less

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What to Know

What should every Swift developer know by heart?

Here are the top 20 facts about Swift programming, based on recommendations and insights from developers:

Open Source: Swift is an open-source programming language, managed by the Swift.org community, allowing developers globally to contribute to its evolution.

Modern Language: Created by Apple in 2014, Swift was designed to be a modern language, combining performance, safety, and developer productivity.

Fast Performance: Swift is known for its speed, claiming to be up to 2.6x faster than Objective-C and 8.4x faster than Python for certain tasks.

Safe: Swift provides features like optional types and strong typing to reduce common programming errors, enhancing code safety.

LLVM Compiler: Swift uses the LLVM compiler infrastructure, which translates Swift code into highly optimized machine code.

Interoperability with Objective-C: Swift can work seamlessly with Objective-C code, allowing for the gradual migration of legacy code.

Automatic Reference Counting (ARC): Swift manages memory through ARC, which automatically deallocates objects when they're no longer needed, eliminating manual memory management.

Playgrounds: Introduced with Swift, Playgrounds offer an interactive environment for developers to write and see results of code in real-time, great for learning and prototyping.

Protocol-Oriented Programming: Swift encourages protocol-oriented programming, which can lead to more flexible and reusable code structures.

Functional Programming Support: Swift supports functional programming paradigms with features like closures, optionals, and higher-order functions.

Error Handling: Swift has a robust error handling model with try, catch, and throw, making it easier to deal with errors in a more structured way.

Generics: Swift's generics allow for reusable code that works with different types without sacrificing type safety.

Concurrency: With the introduction of async/await in Swift 5.5, developers can write asynchronous code more easily and safely.

Cross-Platform: While initially for Apple's platforms, Swift has expanded to Linux and Windows, broadening its application scope beyond iOS and macOS.

Popular Among Developers: Swift has been consistently ranked among the most loved languages in the Stack Overflow Developer Survey, indicating strong community support.

Swift Package Manager: Swift's built-in package manager simplifies dependency management, making it easier to integrate third-party libraries.

Tuples: Swift introduces tuples as a way to group related values, offering an alternative to more complex data structures for simple cases.

Optionals: Swift's optional types are a unique feature that forces developers to handle the possibility of a nil value, reducing runtime errors.

Pattern Matching: Swift includes powerful pattern matching capabilities, which can simplify complex conditional checks or data extraction.

Growing Ecosystem: Swift's ecosystem has expanded with numerous frameworks, libraries, and tools tailored for different domains like server-side Swift, making it versatile for various applications.

These facts highlight Swift's design philosophy, capabilities, and its place in the modern programming landscape, as recognized by the developer community. Swift continues to evolve, with each version bringing enhancements and new features that keep developers engaged and the language relevant.

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