How to Handle Errors with do/try/catch

Steps

1. Paste the code into a Swift file or playground.
2. Run it once to verify the output.
3. Adjust the inputs to match your use case.

Copy and paste

import Foundation

enum FileError: Error {
    case missing
}

func loadFile() throws -> String {
    throw FileError.missing
}

do {
    let content = try loadFile()
    print(content)
} catch {
    print("Failed:", error)
}

Notes

• Keep functions small and focused for reuse.
• Prefer safe APIs like optionals and guards.