How to convert list to queue in scala

Question

I tried this:

var myQueue = scala.collection.mutable.Queue(myList)

Where list contains elements, let's say: List(1,2,3,4,5)

I want a queue with the same elements with the list such as: Queue(1,2,3,4,5). But what I got is: Queue(List(1, 2, 3, 4, 5))

Any idea?

btw: you should avoid using var and mutable collections when programming Scala. There is (almost) always a way to do it in another way! — Thomas Böhm
– Thomas Böhm, Commented Nov 3, 2017 at 16:27

Jeffrey Chung · Accepted Answer · 2017-11-04 13:17:16Z

1

Pass the list as a vararg:

val myList = List(1, 2, 3, 4, 5)

val myQueue = scala.collection.mutable.Queue(myList: _*)
// Queue(1, 2, 3, 4, 5)

answered Nov 3, 2017 at 16:28

Jeffrey Chung

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