Question

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

Answer 1

fun removeNonAlphanumeric(input: String): String {
    return input.replace(Regex("[^A-Za-z0-9]"), "")
}
 
fun main() {
    var s = "Kotlin, #@519! ^&Programming (*).";
     
    s = removeNonAlphanumeric(s)
     
    println(s)  
}
 
   
    
/*
run:
  
Kotlin519Programming
  
*/

 

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