I can count!
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
I know my ABCs!
- 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
I can catch errors!
Oh no! "undefined method `silly' for String:Class" happened!
"false" is:
false
Even!
Odd!
Even!
Odd!
Even!