Bridging Worlds: Exploring Kotlin for Swift Developers

Swapnil Nighot
3 min readAug 29, 2023

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Introduction:

In the fast-evolving landscape of software development, the ability to adapt and embrace new technologies is crucial. Swift and Kotlin, two modern programming languages, have emerged as powerhouses in their respective domains — iOS/macOS/tvOS app development for Swift and Android app development for Kotlin. While they may target different platforms, Swift and Kotlin share a common lineage and a fundamental set of programming concepts that make them remarkably similar.

If you’re a Swift developer venturing into the realm of Kotlin, you’re already well-equipped to dive in. This article series, “Bridging Worlds: Exploring Kotlin for Swift Developers,” is designed to guide you through the process of transitioning your skills and mindset from Swift to Kotlin. I’ll leverage the analogies between these languages to accelerate your understanding of Kotlin’s syntax, principles, and best practices.

Finding Familiar Ground:

Both Swift and Kotlin have their roots deeply embedded in modern programming paradigms, and their designs reflect a focus on safety, expressiveness, and developer-friendliness. This inherent similarity makes it easier for Swift developers to grasp Kotlin concepts without starting from scratch.

In this series, I’ll draw parallels between the languages, highlighting corresponding concepts, language constructs, and design philosophies. For every Swift concept you’re familiar with, there’s likely a counterpart in Kotlin that serves a similar purpose. By recognising and understanding these parallels, you’ll be able to leverage your existing Swift knowledge as a launchpad into the world of Kotlin.

The Journey Ahead:

Over the course of this article series, I’ll cover a wide range of topics that resonate with Swift developers seeking to learn Kotlin:

  • Variables and Constants: Drawing parallels between Swift’s var and let and Kotlin’s var and val declarations. Link.
  • Type System: Comparing Swift’s strong typing with Kotlin’s type inference and null safety. Link.
  • Functions and Lambdas: Exploring how functions and lambdas are defined, invoked, and utilised in both languages.
  • Collections: Understanding the similarities and differences in handling arrays, lists, and maps in Swift and Kotlin.
  • Object-Oriented Programming: Recognizing the shared concepts of classes, objects, inheritance, and interfaces.
  • Concurrency and Asynchronous Programming: Exploring how Swift’s async/await relates to Kotlin’s coroutines.

Each article will bridge the gap between Swift and Kotlin by building upon your existing Swift knowledge and demonstrating its equivalence in the Kotlin ecosystem. Our goal is to empower you to not only write Kotlin code but also comprehend and appreciate the language’s design principles.

Conclusion:

As you embark on this journey of exploring Kotlin through the lens of Swift, you’re investing in your versatility as a developer. The knowledge you gain from this series will not only allow you to contribute to Kotlin projects but also enhance your holistic programming acumen.

So, let’s begin this voyage of analogies and insights. Strap in as we traverse the shared landscape of Swift and Kotlin, unraveling the intricacies of each language while appreciating the common threads that tie them together. Welcome to “Bridging Worlds: Exploring Kotlin for Swift Developers.”

What Next:

As part of this article series, please take a look at the first article titled “Navigating Variables and Constants in Swift and Kotlin.” You can find the article by following this link.

If you enjoy this article, kindly consider liking it and sharing your feedback. Your support and feedback will serve as encouragement for me to continue crafting further articles within this series.

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