Formatter

Formatter - NSHipster

Formatting numbers in Swift | Swift by Sundell

Exploring some of the lesser-known, built-in Formatter types | Swift by Sundell

How to use FormatStyle to restrict TextField input in SwiftUI

Formatting dates in the user’s locale using DateFormatter in Swift – Donny Wals

Formatting dates in Swift using Date.FormatStyle on iOS 15 – Donny Wals

Pitch: an Official Style Guide and Formatter for Swift - Evolution / Pitches - Swift Forums