Loop or Range of Alphabet A to Z

<%= ('A' .. 'Z').to_a*" " %>

output => A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


<%= ('A' .. 'Z').to_a*", " %>

output => A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z

alphaRange = ('A'..'Z').to_a*","
alphaRange = alphaRange.split(',')

alphaRange.each do |alpha|
puts alpha
end

output =>
A
B
C
.
.
.
Z