for loops in scala code example

Example 1: how loop in scala

for (i <- 1 to 10 if i < 4) println(i)

Example 2: how loop in scala

res: Seq[(Int, Char)] = List((1,a), (1,b), (1,c), 
                             (2,a), (2,b), (2,c),
                             (3,a), (3,b), (3,c))

Example 3: how loop in scala

val lengths = for (e <- names) yield {
    // imagine that this required multiple lines of code
    e.length
}

Example 4: how loop in scala

for (n <- names) println(n)
for (n <- names) println(n.capitalize)    
for (n <- names) {
    // imagine this requires several lines
    println(n.capitalize)
}