Value Types vs. Reference Types In Swift

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By Aasif | December 28, 2021 10:30 pm  | 5-min read

In the Swift programming language, some types are value types and others are reference types. What’s the difference? And how do these types affect practical iOS development? In this tutorial, you’ll learn: What a value type and a reference type is The difference between value types and reference types Why that’s important to understand, in practical iOS development When it’s best to use value types or reference types Table of Contents Value Types In Swift Reference Ty [...]

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How To: Build A Blockchain App With Swift

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By Aasif | December 28, 2021 10:09 pm  | 10-min read

In this tutorial we are going to build a blockchain app. Blockchain technology is hot right now, and it has an immense amount of potential. But did you know that the future of the blockchain is building apps and services on top of the blockchain? I’ll show you how in this tutorial. You’ll learn how the blockchain works, what proof of work is for, and I’ll show you step-by-step how to build an app that interacts with the blockchain. The blockchain app we are going to build together is [...]

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Finding The Most Profitable App Business Models

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By Aasif | Last Updated on December 29th, 2021 8:30 pm | 5-min read

Finding a profitable app business model is an important part of building your app business. How do you monetize your indie app? It’s a crucial question to ask, because it determines the viability and profitability of your indie app. In this tutorial, we’ll take a look at the 5 most profitable app business models. We’ll discuss their advantages and drawbacks. We’ll also focus on how you can find an app business model that maximizes revenue, for the least amount of work. When you’ve f [...]

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Strings in Swift Explained

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By Aasif | Last Updated on December 29th, 2021 8:29 pm | 5-min read

You use strings in Swift to represent text. They’re strings of characters, use the String value type, and are stored with the intriguing Unicode/UTF-8 data format. Let’s find out more about strings in Swift! In this tutorial, we’ll get into: How you use String and string literals in Swift String operations like interpolation, concatenation and addition The consequences of Unicode and UTF-8, and string lengths Working with indices to get specific characters from a string Getting s [...]

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Play with Code: Converting Roman Numerals with Swift

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By Aasif | December 28, 2021 5:50 pm  | 4-min read

Roman numerals, such as MMXIX, are exciting! In this tutorial, we’re going to write some code that converts any integer number to a roman numeral. It’s a fun, short exercise that touches on many aspects of the Swift programming language. It’s perfect if you have a spare minute or two to play with code! Table of Contents What Are Roman Numerals? Setting Up The “roman(number:)” Function Converting Numbers To Roman Numerals Taking Numerals Like “IX” Into Account Further Re [...]

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