true or false == true
true: True boolean value
false and true == false
false: False boolean value
x = nil
nil: Represents “nothing” or “no value”.
x = “hello”
strings: stores textual information
i = 100
numbers: Stores integers
i = 10.389
floats: Stores decimals
j = [1,2,3,4]
arrays: Stores a list of things
e = {‘x’ => 1, ‘y’ => 2}
hashes: Stores a key=value mapping of things