Question

How to validate a 10-digit phone number with hyphens (e.g. 333-555-1234) using RegEx in Swift

Answer 1

import Foundation

let phoneNumber = "333-555-1234"
let pattern = "^[0-9]{3}-[0-9]{3}-[0-9]{4}$"

if let _ = phoneNumber.range(of: pattern, options: .regularExpression) {
    print("Valid phone number format")
} else {
    print("Invalid phone number format")
}



/*
run:

Valid phone number format

*/

 

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