arrays,scala,zip , Zipping two arrays together with index in Scala?


Zipping two arrays together with index in Scala?

Question:

Tag: arrays,scala,zip

I have two arrays populated with integers. They are the same size (val array1 and val array2).

I want to fuse them together into tuples with their index as the third element. For example if we have val array1 = Array(5,2,6,2) and val array2 = Array(9,8,3,4) then I want to get (5,9,0),(2,8,1),(6,3,2),(2,4,3).

I tried doing array1.zip(array2).zipWithIndex but it gives [(Int,Int),Int] whereas I want (Int,Int,Int) or something similar.


Answer:

Simply do:

array1.zip(array2).zipWithIndex.map { case ((a, b), i) => (a, b, i) }

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