How to append a list in Scala

Question

Can anyone explain how can we use Scala to append to a List?

Answer 1

Hey,

For this purpose, we use the single value ‘:+’.

scala> var a=List.empty[String]

a: List[String] = List()

scala> a :+="red"

scala> a :+="green"

scala> a :+="blue"

scala> a

The output will be:

List[String] = List(red, green, blue)

Now to append a list to it:

scala> a++=List("golden","bronze")

scala> a

The output will be:

List[String] = List(red, green, blue, golden, bronze)

Hope this helps!!

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Thank you!