Used in variable doc medium

define_var..rb

string = "I am a string."   # => String
int = 123                   # => Integer
float = 34.5                # => Float
complex = 1i                # => Complex
boolean = true              # => Boolean
array = [a,b,c]             # => Array
hash = {ruby: 3.0}          # => Hash

total = int + float         # => 157.5

prok = Proc.new { puts "I'm a Proc" }
# => #<Proc:0x000055e15f9f38a0 define_var.rb:1>
lambdaa = lambda { puts "I'm a Lambda" }
# => <Proc:0x000055e15f9f3850 define_var.rb:2 (lambda)>