This document contains a discussion between Daniel Souza and danielCarlosCE about iOS development best practices. It includes recommendations on naming conventions for classes, variables, functions and enums. It also provides suggestions on removing force unwraps, handling errors, removing commented out code, and references for clean code standards.

1. Globalcode – Open4education
Trilha – iOS
Daniel Souza
iOS Developer

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Small changes,
great outcomes

3. Globalcode – Open4education
danielCarlosCE commented on Apr 18
You should start with a
Capital Letter when naming
classes

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Name of types and protocols UpperCamelCase
Variables and functions lowerCamelCase
Enum cases lowerCamelCase
Constants lowerCamelCase

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class LoginViewController { }
struct Place { }
protocol PlacesDataSource { }
enum Result { }

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var passwordRules = "8 characters"
let maximumAttempts = 16
func sendRequest() {}
enum Result {
case success
}

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danielCarlosCE commented on Apr 18
view is a pretty ambiguous
name. What about something like
contentView?

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@IBOutlet var label: UILabel!
@IBOutlet var errorLabel: UILabel!
var string = "No places found!"
var error = "No places found!"

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danielCarlosCE commented on Apr 18
You should start with a verb
when naming this function

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func findNearbyStores()
func distance(to: Store) -> Distance

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danielCarlosCE commented on Apr 18
those two lines are common for
both cases, you can call them
outside the switch

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case .success:
stopLoading()
hideCurrentError()
showFoundPlaces()

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case .success:
stopLoading()
hideCurrentError()
showFoundPlaces()
case .failure (let error):
stopLoading()
hideCurrentError()
show(error)

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case .success:
stopLoading()
hideCurrentError()
showFoundPlaces()
case .failure (let error):
stopLoading()
hideCurrentError()
show(error)

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danielCarlosCE commented on Apr 18
Remove all commented out code,
please

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danielCarlosCE commented on Apr 18
You should handle this case of
failure

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switch result {
case .success:
showFoundPlaces()
case .failure (let error):
print(error)
}

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danielCarlosCE commented on Apr 18
Remove the force unwrap here
and make sure you actually have
a value

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if let phone = phone {}
api?.findUsers()
guard let address = address else {}

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• Clean Code
• Swift API Design Guidelines
• Swift Style Guide (raywenderlich)
• Lint (SwiftLint)

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danielcarlosce