Conditionals

1. Comparison Operators
2. Spaceship operator
3. if statement
4. elsif
5. unless statement
6. Suffix if
7. Suffix unless
8. Logical operators
9. Truth-table
10. case / when
11. case of types
12. Ternary operator and or to set default value
13. Exercise: Number Guessing game - level 0
14. Solution: Number Guessing game - level 0