Question 1

Is LinkedIn's Swift style guide still relevant for Swift 5?

Accepted Answer

It has foundational value for core Swift practices like naming and formatting, but since it's based on Swift 4.0, you'll need to adapt it for newer features like SwiftUI or async/await. Check Apple's updated guidelines for modern additions.

Question 2

How to enforce LinkedIn's style guide in Xcode?

Accepted Answer

You can't enforce it directly; manually apply the rules during code reviews or create custom SwiftLint configurations based on the guide's specifications. For example, set line length limits and naming conventions in your .swiftlint.yml file.

Question 3

LinkedIn Swift style guide vs Google's Swift style guide

Accepted Answer

LinkedIn's guide is more detailed on formatting and documentation, while Google's is updated more frequently and includes Swift 5+ features. Choose LinkedIn for corporate consistency or Google for broader community alignment and newer language support.

Question 4

How to handle optionals according to LinkedIn's guide?

Accepted Answer

It recommends using guard statements for unwrapping, avoiding implicitly unwrapped optionals except for @IBOutlets, and preferring error handling over nil returns for failures. See section 3.5 for examples like guard let myValue = myValue.

Question 5

Does LinkedIn's guide cover SwiftUI?

Accepted Answer

No, it was last updated in 2018 before SwiftUI's release, so it focuses on UIKit and foundational Swift. For SwiftUI, you'd need to supplement with Apple's documentation or other modern style guides.

Question 6

What are the key rules for closures in LinkedIn's guide?

Accepted Answer

It advises using trailing closure syntax when possible, omitting parameter types if obvious, and keeping closure bodies readable with indentation. Examples in section 3.8 show how to format multi-line closures and avoid retain cycles.

Swift Style Guide by LinkedIn

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