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Hi I am beginner in scala, I want to unpack 

List(List("hello=10","hi=21","there=13","bro=44","family=44","technology=35","hi=20","hello=100","hi=21","there=13","bro=44","family=44","technology=35","hi=21","there=13","bro=44","family=44","family=44"))

into something like 

List("hello=10","hi=21","there=13","bro=44","family=44","technology=35","hi=20","hello=100","hi=21","there=13","bro=44","family=44","technology=35","hi=21","there=13","bro=44","family=44","family=44")

how we can achive?

Thanks!

Sergii Lagutin
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Rams_v
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1 Answers1

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You can use built-in method flatten of list. 

scala> val list = List(List("hello=10","hi=21","there=13","bro=44","family=44","technology=35","hi=20","hello=100","hi=21","there=13","bro=44","family=44","technology=35","hi=21","there=13","bro=44","family=44","family=44"))
list: List[List[String]] = List(List(hello=10, hi=21, there=13, bro=44, family=44, technology=35, hi=20, hello=100, hi=21, there=13, bro=44, family=44, technology=35, hi=21, there=13, bro=44, family=44, family=44))

scala> list.flatten
res0: List[String] = List(hello=10, hi=21, there=13, bro=44, family=44, technology=35, hi=20, hello=100, hi=21, there=13, bro=44, family=44, technology=35, hi=21, there=13, bro=44, family=44, family=44)
Mahesh Chand
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