ruby - using a string (from gets) directly as a variable name -

starting out towers of hanoi assignment, have

a = [6,5,4,3,2,1] b = []     c = []  puts "type a, b, or c" = gets.chomp # user types lower-case popped = from.pop

now fails because pop not string method.

so other than

if ==     popped = a.pop elsif == b     popped = b.pop

, there nice ruby shortcut pop intend?

you can use eval:

a = [6,5,4,3,2,1] b = []     c = []  puts "type a, b, or c" = gets.chomp popped = eval(from).pop

but eval typically seen bad idea security, performance, , debugging reasons.

Bradly