A beginner friendly talk on the data type and data structures in ruby.

1. Ruby Data Types
and
Data Structures

2. Integer
• The basis for the two concrete classes that hold
whole numbers, Bignum and Fixnum.

3. Fixnum
• size is native machine word (minus 1 bit)
4,611,686,018,427,387,903

4. Bignum

5. useful methods

6. Iteration

7. Float
• 1.3
• 4.99
• 38345.34
• 1.0

8. Float Methods

9. number equality

10. Range

11. Strings

12. Symbols
• starts with :
• if it has spaces :”more tacos”

13. Symbols

14. Arrays
• group of values, they don't have to be the same
type

15. Array Creation
Define with [ ] and values
Or with a length and optionally a default value

16. Array Methods

17. Array Methods

18. Hash
• key , value pairs
• keys can be strings or symbols

19. Hash Creation
Two Ways to create a Hash

20. Hash Syntax
String keys need the fat arrow
Two forms of syntax when defining values

21. Hash Methods

22. Sets
Create two ways
require “set”

23. Set Operations
Union
Merge

24. Sorted Set

25. Comparator

26. Using Sorted Set

27. Output Sorted Set
Go Bears!