CODEWITHSUNDEEP
listkotlin
yambo
yambo

Reputation: 1807

How to check if a list of custom types, contains a subset of values of that type in Kotlin?

I have a list of a custom date type:

val dates = mutableListOf(
    Date(year = 2020, month = 4, day = 3),
    Date(year = 2021, month = 5, day = 16),
    Date(year = 2020, month = 1, day = 29)
)

And a set of "months" I need to ensure are in the list:

val months = listOf(1, 4)

Is there a way to check if dates contains all of the months from the list? I feel like there could be a way to do this using the .containsAll() function on the initial list, but I am not sure.

Upvotes: 1

Views: 60

Answers (1)

Alex Krupa
Alex Krupa

Reputation: 560

Does this solve your problem?

dates.map { it.month }.containsAll(months)

Upvotes: 2

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