with for « Range « Ruby

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