Use safe optional handling instead of force unwrapping: ```swift func title(for item: Item?) -> String { guard let item else { return "Untitled" } return item.title } let displayTitle = item?.title ?? "Untitled" if let item { print(item.title) } ``` Use `guard let` when the value is needed for the remainder of the scope, `if let` for a local branch, and `??` for a default. Avoid `Type!`, `!`, and `as!`; use proper optionals and conditional casts (`as?`).
Scanned 9/5/2026
Install to Claude Code
Skills Directorynpx -y skills add HoangNguyen0403/agent-skills-standard --skill swift-language --agent claude-codeInstalls into .claude/skills of the current project.
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Use safe optional handling instead of force unwrapping:
```swift
func title(for item: Item?) -> String {
guard let item else { return "Untitled" }
return item.title
}
let displayTitle = item?.title ?? "Untitled"
if let item { print(item.title) }
```
Use `guard let` when the value is needed for the remainder of the scope, `if let` for a local branch, and `??` for a default. Avoid `Type!`, `!`, and `as!`; use proper optionals and conditional casts (`as?`).
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