In this Kotlin tutorial, I will show you some examples that uses sum(), sumBy(), sumByDouble() for List, Map. We’re gonna create sum() & sumByBigDecimal() which also work for List of BigDecimal objects.
Related Posts:
– Kotlin List & Mutable List tutorial with examples
– How to work with Kotlin HashMap
– Kotlin Fold Example: fold(), foldRight(), foldIndexed(), foldRightIndexed()
– Kotlin groupBy(), groupingBy() example
