CODEWITHSUNDEEP
scala
tokola
tokola

Reputation: 257

Scala how to split a list at a certain index

If I have a list of ten elements in Scala how can I create a new list that consists of only the elements of the previous list from a range of two indexes. So if the original list was ten items long the new one could be like:

val N=Oldlist(0) to Oldlist(10)

Please do not use the split at method thats not what I'm trying to do.

Upvotes: 1

Views: 3929

Answers (2)

Rich Henry
Rich Henry

Reputation: 1849

List has a slice(from, to) method. You should probably use that. I thought it used structural sharing, but it doesn't (as discussed in the comments).

Upvotes: 3

Jean Logeart
Jean Logeart

Reputation: 53869

If I understand correctly your question, you can do:

val list = (oldlist(0) to oldList(10)).toList

oldlist(0) to oldList(10) creates a new Range that is then converted to a List.

Upvotes: 0

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