Combing 3 Arrays using Zip to get a Tuple of three

Question

I have a Array like below

val a1 = Array("a","b","c")
var a2= Array("Apple","Box","Cat")
var a3= Array("Angel","Ball","Count")

I can use zip function to make a tuple of two. But how can I get a result like below?

Array(("a","Apple","Angel"),("b","Box","Ball"),("c","Cat","Count"),)

`zipped` is deprecated in Scala 2.13. in 2.13, `a1.lazyZip(a2).lazyZip(a3).toArray` — Seth Tisue, Dec 08 '19 at 23:01

score 1 · Accepted Answer · answered Dec 08 '19 at 15:20

1

You can iterate over indices and map:

val result = a1.indices.map(index => (a1(index), a2(index), a3(index)))

That will create a Vector. If you want an Array, simply: result.toArray.

answered Dec 08 '19 at 15:20

Andronicus

Unlike .zipped, this solution fails if a1 is longer than a2 or a3. – Brian McCutchon Dec 08 '19 at 17:07

1 Answers1