Merging lists in scala-CodePudding

I have to merge these two lists together in a way that results in the 3rd list. I'm not super familiar with Scala that much but I am always interested in learning.

val variable = List("a", "b", "c") | val number = List("1", "2", "3")

When merged and printing each value after, it should result in an output like this

a is equal to 1 b is equal to 2 c is equal to 3

with a list that is now equal to

List("a is equal to 1", "b is equal to 2", "c is equal to 3")

Please help me out

CodePudding user response：

zip and map would work,

variable.zip(number).map {case (str, int) => s"$str is equal to $int"}

CodePudding user response：

Alternativly, you could use for-comprehensions

Welcome to Scala 3.1.1 (17, Java OpenJDK 64-Bit Server VM).
Type in expressions for evaluation. Or try :help.
                                                                                                          
scala> val variable = List("a", "b", "c")
val variable: List[String] = List(a, b, c)
                                                                                                          
scala> val number = List("1", "2", "3")
val number: List[String] = List(1, 2, 3)
                                                                                                          
scala> for {
     |   str <- variable
     |   n <- number
     | } yield s"$str is equal to $n"
val res0: List[String] = List(a is equal to 1, a is equal to 2, a is equal to 3, b is equal to 1, b is equal to 2, b is equal to 3, c is equal to 1, c is equal to 2, c is equal to 3)