Question

How to remove all non-alphanumeric characters from a string in Swift

Answer 1

import Foundation

func removeNonAlphanumeric(from s: String) -> String {
    let pattern = "[^a-zA-Z0-9]"
    let regex = try! NSRegularExpression(pattern: pattern, options: [])
    let range = NSRange(location: 0, length: s.utf16.count)
    let result = regex.stringByReplacingMatches(in: s, options: [], range: range, withTemplate: "")
    
    return result
}

var s = "Swift, #@ ! ^&Programming (*).";

s = removeNonAlphanumeric(from: s)

print(s) 



/*
run:

SwiftProgramming

*/

 

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