Perform an action on each element in a set

This example uses the [set->forEach] method to output a list of squares of each number in a set.
 

Code

define squareMe(n::integer=1) => {  
    return #n * #n 
}

var( aSet = array(1, 2, 3, 5, 8, 13))

$aSet->forEach => {^  squareMe(#1)+'  ' ^}

Result

1  4  9  25  64  169