Question

How to remove all letters from an alphanumeric string in Scala

Answer 1

object Main {
    def removeLetters(input: String): String = {
        input.filterNot(ch => ch.isLetter)
    }
    def main(args: Array[String]) = {
        val input = "abc123XYZ456programming789"

        val result = removeLetters(input)

        println(result) 
    }
}


/*
run:

123456789

*/

 

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