Ruby Data Types and

Data Structures

Integer

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

Fixnum• size is native machine word (minus 1 bit)

4,611,686,018,427,387,903

Bignum

useful methods

Iteration

Float

• 1.3

• 4.99

• 38345.34

• 1.0

Float Methods

number equality

Range

Strings

Symbols

• starts with :

• if it has spaces :”more tacos”

Symbols

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

type

Array CreationDefine with [ ] and values

Or with a length and optionally a default value

Array Methods

Array Methods

Hash

• key , value pairs

• keys can be strings or symbols

Hash CreationTwo Ways to create a Hash

Hash Syntax

String keys need the fat arrow

Two forms of syntax when defining values

Hash Methods

Sets

Create two ways

require “set”

Set OperationsUnion

Merge

Sorted Set

Comparator

Using Sorted Set

Output Sorted Set

Go Bears!