Hi everyone! please help me, how can i get first 5 elements from from Map<String, Double> ?

# getting-started

[Shumilin Alexandr]

Hi everyone! please help me, how can i get first 5 elements from from Map<String, Double> ?

[Joffrey]

Maps don't have order. What do you mean by the first 5 elements?

[Shumilin Alexandr]

csvService.read(fileList)
.groupBy { it.participant }
.mapValues { (_, challengeRecords) -> challengeRecords.sumOf { it.point } }
.toList()
.sortedByDescending { (k, v) -> v }
.toMap()

[Shumilin Alexandr]

i have a sroted map by value, and i need take to first 5 elements

[phldavies]

You could use .take(5) before the .toMap()

[Shumilin Alexandr]

Yes it works! thank you!

[Matteo Mirk]

classic case of https://xyproblem.info/ 😉