running a for loop in scala code example

Example 1: how loop in scala

for ((name, count) <- names.zipWithIndex) {
    println(s"$count is $name")
}

Example 2: how loop in scala

val nums = Seq(1,2,3)
val letters = Seq('a', 'b', 'c')
val res = for {
    n <- nums
    c <- letters
} yield (n, c)