Scala Tuple to String (using mkString)

Question

Suppose I have a list of tuples

('a', 1), ('b', 2)...

How would one get about converting it to a String in the format

a 1
b 2

I tried using collection.map(_.mkString('\t')) However I'm getting an error since essentially I'm applying the operation to a tuple instead of a list. Using flatMap didn't help either

Answer 1

For Tuple2 you can use:

val list = List(("1", 4), ("dfg", 67))
list.map { case (str, int) => s"$str $int"}

For any tuples try this code:

val list = List[Product](("dfsgd", 234), ("345345", 345, 456456))

list.map { tuple => 
  tuple.productIterator.mkString("\t")
}