How do I get the index of a value from a Kotlin array?
My best solution right now is using:
val max = nums.max()
val maxIdx = nums.indices.find({ (i) -> nums[i] == max }) ?: -1
is there a better way?
indexOf in Kotlin Arrays
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3 Answers
If you want to find the item based on some predicate, then you can use indexOfFirst and indexOfLast extension functions.
val strings = arrayOf("hello","world","hello")
val firstHelloIndex = strings.indexOfFirst { it == "hello" }
val lastHelloIndex = strings.indexOfLast { it == "hello" }
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