Question

How to remove the letters from word1 if they do not exist in word2 with Kotlin

Answer 1

fun removeNonCommonLetters(word1: String, word2: String): String {
    return word1.filter { it in word2 }
}

fun main() {
    val word1 = "forest"
    val word2 = "tor"

    val result = removeNonCommonLetters(word1, word2)
    println(result) 
}

 
  
/*
run:
  
ort

*/

 

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