In JavaScript there is the nice spread operator.
Example from MDN:
var parts = ['shoulders', 'knees'];
var lyrics = ['head', ...parts, 'and', 'toes'];
// ["head", "shoulders", "knees", "and", "toes"]
Is there an equivalent in Scala?
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Maybe this is of interest (more in the context of spreading over function parameters): stackoverflow.com/questions/15170646/…Thilo– Thilo2017-08-26 08:09:01 +00:00Commented Aug 26, 2017 at 8:09
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4 Answers
How about
val lyrics = Seq("head") ++ parts ++ Seq("and", "toes")
Comments
There's always patch(). It's arguments are a little more cryptic because it has a wider, more general, field of applications.
val parts = List("shoulders", "knees")
val lyrics = List("head", "and", "toes")
lyrics.patch(1, parts, 0) // res0: List(head, shoulders, knees, and, toes)
Comments
This might work:
val parts = List("shoulders", "knees")
val lyrics = "head" :: parts.::("and").::("knees")
However, this works only on List type
Comments
I think there's no equivalent.
You can do like this.
val parts = Seq("shoulders", "knees");
val lyrics = "head" +: parts :+ "and" :+ "toes"
println(lyrics) // List(head, shoulders, knees, and, toes)
