How to create a map from an array in Kotlin?

In below example we are going to use an array called arrayRules, Arrays in Kotlin has e function called .map() which can be used to split based on ->

fun main(args: Array<String>) {
    val arrayRules = arrayOf(
      "A -> AA",
      "B -> AB",
      "C -> AC",
      "D -> AD",
      "E -> AE",
    )

    val result = arrayRules
      .map { it.split(" -> ".toRegex()) }
      .associate { it.first() to it.last() }

    println(result)
}

Output

{A=AA, B=AB, C=AC, D=AD, E=AE}

Conclusion

In this page (written and validated by A. Gawali) you learned about How to create a map from an array in Kotlin? . What's Next? If you are interested in completing Kotlin tutorial, we encourage you simply to start here: Kotlin Tutorial.

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