a for loop and an inclusive string range


for i in "a".."z"
  print i
end

1.	The for loop
2.	Drop the do. It isn't required, but you have to keep end:
3.	If you want to do the for loop on one line, you have to throw in the do
4.	An example of a for loop that prints out a times table (from 1 to 12) for the number 2
5.	With nested for loops, you can easily print out times tables from 1 to 12:

a for loop and an inclusive string range : with for « Range « Ruby