Add post about refactoring

content/posts/series/swift-code-refactor/1/index.md

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+---
+title: '#1 Swift code refactor in action - user profile name'
+date: 2024-11-20
+tags: ['Swift', 'Refactoring']
+series: "Swift code refactor in action"
+cover: 
+  image: 'images/cover.png'
+  alt: 'Swift code refactor in action - user profile name'
+---
+
+Swift code refactor in action 👨🏻‍💻
+
+Common scenario: formatting user profile name - I bet any of you faced this kind of task. 
+
+At first glance, it look straightforward, but when you take a closer look, you’ll notice two potential improvements:
+1️⃣ One single return - simplification of the the function flow.
+2️⃣ Centralised formatting logic - reduces the chance of bugs.
+
+Check out the animated gif and the code where I refactor to address these issues.
+
+Advice: The easiest and fastest way to validate your refactor is to have the code unit tested, so remember to test it before you start refactoring!
+
+Gif ⤵️
+
+![reference_image_delete](images/refactoring.gif)
+
+Code ⤵️
+
+#1
+```swift
+/// Returns the user's full name, optionally including a nickname in the format:
+/// - With nickname: `[Johnny] John Doe`
+/// - Without nickname: `John Doe`
+func userProfileName(firstName: String, lastName: String, nickname: String?) -> String {
+    if let nickname {
+        "[\(nickname)] \(firstName) \(lastName)"
+    } else {
+        "\(firstName) \(lastName)"
+    }
+}
+```
+
+#2
+```swift
+/// Returns the user's full name, optionally including a nickname in the format:
+/// - With nickname: `[Johnny] John Doe`
+/// - Without nickname: `John Doe`
+func userProfileName(firstName: String, lastName: String, nickname: String?) -> String {
+    nickname.map { nickname in ["[\(nickname)]", firstName, lastName].joined(separator: " ") }
+        ?? [firstName, lastName].joined(separator: " ")
+}
+```
+
+#3
+```swift
+/// Returns the user's full name, optionally including a nickname in the format:
+/// - With nickname: `[Johnny] John Doe`
+/// - Without nickname: `John Doe`
+func userProfileName(firstName: String, lastName: String, nickname: String?) -> String {
+    [nickname.map { nickname in "[\(nickname)]" }, firstName, lastName]
+        .compactMap { $0 }
+        .joined(separator: " ")
+}
+```
+
+---
+
+Thanks for reading. 📖
+
+I hope you found it useful!
+
+If you enjoy the topic don't forget to follow me on one of my social media - [LinkedIn](https://www.linkedin.com/in/maciej-gomolka/), [X](https://twitter.com/gomolka_maciej) or via [RSS](https://www.mobiledevdiary.com/index.xml) feed to keep up to speed. 🚀