Question

How to check if a string contains identical digits in Swift

Answer 1

import Foundation

func isStringContainIdenticalDigits(_ s: String) -> Bool {
    return Set(s).count == 1
}

let s1 = "88888888"
print(isStringContainIdenticalDigits(s1)) 

let s2 = "999999991"
print(isStringContainIdenticalDigits(s2)) 



/*
run:

true
false

*/

 

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