Author name: Justin Wright

Fixing “Fatal error: Unexpectedly found nil while unwrapping an Optional value” in Swift

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This article will show how you can fix the “Fatal error: Unexpectedly found nil while unwrapping an Optional value” in Swift. The “Fatal error: Unexpectedly found nil while unwrapping an Optional value” is a common runtime error in Swift, often encountered when working with optional. Understanding Optionals in Swift In Swift, optionals are used to …

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#ifdef replacement in the Swift

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This tutorial will guide you through the process of replacing #ifdef in Swift using conditional compilation. In Swift, the #ifdef preprocessor directive commonly used in languages like C or Objective-C is not directly available. However, Swift provides conditional compilation through the use of build configurations and conditional compilation flags. Create Conditional Compilation Flags In Swift, …

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How to Iterate a Loop with Index and Element in Swift

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This article will show how you can Iterate a Loop with Index and Element in Swift. Swift provides multiple ways to iterate over a collection while accessing both the index and the element in each iteration. In this tutorial, we’ll explore two commonly used methods: indices and enumerated(). Using indices Property The indices property is …

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How to Call Objective-C Code from Swift

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This tutorial will guide you through the process of calling Objective-C code from Swift and vice versa. Swift and Objective-C are interoperable, allowing you to seamlessly use code written in Objective-C within your Swift projects. Integrating Objective-C code into a Swift project can be essential when working with legacy code, third-party libraries, or existing projects. …

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Error: Cannot find module ‘semver’ in Node.js

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This article will show how you can fix the “Error: Cannot find module ‘semver’ ” error in Node.js. If you are encountering the “Error: Cannot find module ‘semver’” while trying to run npm install in Node.js, you’re not alone. The error: This error often occurs when there are issues with the installed Node.js and npm …

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Share constants in NodeJS modules

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This article will show how you can share constants in NodeJS modules. Sharing constants in Node.js modules is a common requirement in projects to maintain a clean and organized codebase. There are various approaches suggested by the community, and in this tutorial, we’ll explore different methods to share constants while emphasizing best practices. Using Object.freeze …

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