DEV Community: divyesh vekariya

Swift Mastery Series — Part 12: Swift Extensions

divyesh vekariya — Fri, 18 Sep 2026 15:10:00 +0000

Swift Extensions: More Than Just Convenience

Swift extensions let you add behavior to existing types without subclassing.

They can help with:

Organizing responsibilities
Adding reusable behavior
Improving readability
Keeping types focused

But like any tool, they work best when used with the right design boundaries.

https://dkvekariya.medium.com/swift-extensions-add-behavior-to-any-type-without-subclassing-de5090ae3808

swift #ios #swiftui

Swift Mastery Series — Part 12: Swift Protocols

divyesh vekariya — Fri, 11 Sep 2026 14:40:00 +0000

Swift Protocols Are More Than Contracts

Protocols aren't just about defining requirements.

They can help you design around behavior, composition, and clear responsibilities instead of relying heavily on inheritance.

I explored protocols, conformance, protocol extensions, generics, and Protocol-Oriented Programming with practical Swift examples.

https://medium.com/@dkvekariya/swift-protocols-contracts-conformance-and-protocol-oriented-programming-6b9d48617970

swift #ios #swiftui

Swift Mastery Series — Part 11: Swift Optionals

divyesh vekariya — Fri, 04 Sep 2026 14:15:00 +0000

Optional is one of the first Swift concepts developers learn.

But it's easy to learn the syntax without understanding the reason behind it.

Why does Swift make us explicitly handle missing values?

Because optionals are a fundamental part of Swift's type-safety model.

In this guide, I explore:

What nil actually represents
Optional and its underlying model
if let and guard let
Optional chaining
Nil-coalescing
Common unwrapping mistakes

Understanding the design behind optionals makes the syntax much easier to reason about.

https://medium.com/@dkvekariya/swift-optionals-nil-unwrapping-and-the-safety-system-behind-the-24d48687694f

#swift #ios #swiftui #programming

Swift Mastery Series — Part 10: Swift Enums

divyesh vekariya — Fri, 28 Aug 2026 13:50:00 +0000

A Swift enum can be much more powerful than a simple list of cases.

With associated values, an enum can carry different data for different states.

With raw values, it can represent external values cleanly.

And with pattern matching, you can handle those states in a concise and type-safe way.

This makes enums especially useful for modeling application state and reducing invalid combinations of properties.

I put together a practical guide covering these concepts and how to use them effectively in real Swift projects.

https://medium.com/@dkvekariya/swift-enums-associated-values-raw-values-and-pattern-matching-a5844461beb1

swift #ios #swiftui #programming

Swift Mastery Series — Part 9: Swift Classes: Reference Types, Inheritance & When to Use Them

divyesh vekariya — Mon, 24 Aug 2026 12:20:00 +0000

Swift encourages developers to prefer value types.

So when should you actually use a class?

Classes become useful when your model needs:

Reference semantics
Identity
Shared mutable state
Inheritance
A shared lifecycle

The important part isn't memorizing the differences between struct and class.

It's understanding why reference semantics are sometimes necessary.

In this guide, I explore Swift classes, reference types, inheritance, and the situations where a class is the better design choice.

https://medium.com/@dkvekariya/swift-classes-reference-types-inheritance-and-when-to-use-them-f7a1fd4bd47c

#swift #ios #swiftui #programming

Swift Mastery Series — Part 8: Swift Structs: Why Apple Chooses Value Types Over Classes

divyesh vekariya — Fri, 14 Aug 2026 14:45:00 +0000

One of the biggest mindset shifts in Swift is realizing that struct isn't a lightweight version of class.

It's a deliberate design choice.

In this article, I cover:

Why Apple recommends value types
struct vs class
Value vs reference semantics
Copy-on-Write
Performance and concurrency benefits
When a class is still the right choice

If you've ever wondered why Swift favors struct, this guide explains the reasoning behind it.

https://medium.com/@dkvekariya/swift-structs-why-apple-chooses-value-types-over-classes-f60b79aa3659

swift #ios #swiftui #programming

Swift Mastery Series — Part 7: Swift Closures: The Concept That Unlocks Everything Else

divyesh vekariya — Fri, 07 Aug 2026 15:01:00 +0000

Closures are one of the most important features in Swift.

Yet they're also one of the topics that developers struggle with the most.

In this guide, I cover:

Closure syntax explained
Capturing values
Trailing closures
Escaping vs non-escaping closures
Real-world iOS examples
Common mistakes to avoid

If you've ever felt confused by closures, this article is designed to make them finally click.

https://medium.com/@dkvekariya/swift-closures-the-concept-that-unlocks-everything-else-91d441e21f24

swift #ios #swiftui #programming

Background App Refresh in iOS: Implementation, Debugging & Pitfalls (Part 2)

divyesh vekariya — Thu, 30 Jul 2026 14:15:00 +0000

You've learned how Background App Refresh works.

Now comes the harder part: making it work reliably.

In this article, I cover:

Implementation best practices
Debugging techniques
Testing strategies
Common mistakes
Why background tasks appear inconsistent

If you've ever wondered why your app refreshes perfectly in development but behaves differently in production, this guide is for you.

https://medium.com/@dkvekariya/background-app-refresh-in-ios-implementation-debugging-pitfalls-part-2-of-2-01ed202f0824

#ios #swift #mobiledevelopment #programming

Background App Refresh in iOS: Busting the Myths (Part 1)

divyesh vekariya — Fri, 24 Jul 2026 14:45:00 +0000

If you've ever said:

"Background App Refresh doesn't work."

You're not alone.

The challenge isn't the API—it's understanding how iOS decides when your app gets background execution time.

In this article, I cover:

Common myths about Background App Refresh
How iOS actually schedules background work
Why apps behave differently on different devices
The mental model every iOS developer should have

Read Part 1 here:

https://medium.com/@dkvekariya/background-app-refresh-in-ios-busting-the-myths-part-1-of-2-0bd58ab3bcca

ios #swift #mobiledevelopment #programming

Claude got it Right! Spain Won

divyesh vekariya — Mon, 20 Jul 2026 07:17:34 +0000

divyesh vekariya

Jul 20

I Asked Claude AI to Predict the FIFA World Cup 2026 Winner... It Got It Right

#ai #claude #agentaichallenge #devdiscuss

1 min read

I Asked Claude AI to Predict the FIFA World Cup 2026 Winner... It Got It Right

divyesh vekariya — Mon, 20 Jul 2026 06:53:05 +0000

Before the tournament kicked off, I asked Claude AI a simple question:

Who will win the FIFA World Cup 2026?

Its prediction:
🇪🇸 Spain

Final result:
🏆 Spain became World Champions.

It's an interesting example of how modern LLMs can synthesize public information team strength, historical performance, recent form, and probabilities to generate plausible forecasts.

Of course, one correct prediction doesn't prove AI can predict the future, but it does raise an interesting question:

Where is the line between statistical reasoning and luck?

I documented the prediction before the tournament started:
https://medium.com/@dkvekariya/claude-predicted-fifa-world-cup-2026-winner-how-5f082f049011

I'd love to hear your thoughts:
How it made it possible to get that accurate?

Swift Mastery Series — Part 6: Swift Functions

divyesh vekariya — Thu, 16 Jul 2026 15:00:00 +0000

Swift Functions: Everything a Senior iOS Engineer Knows

Functions are one of the first Swift concepts we learn.

Yet they're also one of the easiest to underestimate.

Great function design leads to cleaner APIs, better testability, and more maintainable code.

In this guide, I cover:

Parameter labels
Default & variadic parameters
inout
Function types
Escaping vs non-escaping closures
API design best practices

If you're looking to write Swift that scales beyond small projects, this guide is for you.

https://medium.com/@dkvekariya/swift-functions-everything-a-senior-ios-engineer-knows-that-you-dont-924f559b5fbd

swift #ios #swiftui #programming