ruby-101.rb

require "date"

# STRING => needs quotes
"london"
""
age = 29
name = "Alex"

# puts "#{name} is #{age}" # string interpolation
# puts '#{name} is #{age}'

# puts "vienna".upcase
# puts "PARIS".downcase
# puts "nEw yOrk".capitalize

"29".to_i

# puts "Alex" + " " + "Haumer" # concatenation
# 'london\'s greatest'
# "london's greatest"

# INTEGER
1
2312312
-1
29.to_s
20.even?   #=> true
20.odd?   #=> false

1 + 1 #=> 2
1.class #=> Integer
1.to_f

# FLOAT
3.14
1.0
10.0.to_i


# BOOLEANS
true
false
1 == 1 #=> true
age < 18 #=> false
1.positive? # method with quesiton marks return booleans


# RANGE
1..10
"a".."z"
(5..35).to_a
1...10

# ARRAYs
[]
[1, 2, 3, 123123] #=> integers
["alex", "cesar", "tegan"] #=> strings
[1, "alex", 3.14, [-1]]
[1,2,3,4,5].length #=> 5
# [1,2,3,4,5].size
# [1,2,3,4,5].count
["d", "a", "z", "e", "b"].sort
["alex", "cesar", "tegan"]
#  0        1        2

# VARIABLES
city = "Berlin" #=> assigning city Berlin to city
# puts city
city = "Tokyo" #=> reassigning city Tokyo to city
# puts city
city.upcase! #=> destructive

# age = 17
# puts "You are #{age} years old"

# puts "Lucky you, it's your birthday!"
# age = age + 1
# # age += 1
# puts "You are now #{age}"

first_name = "Seb"
last_name = "Saunier"

full_name = "#{first_name} #{last_name}"
# full_name = first_name + " " + last_name
# puts full_name



# METHODS

def print_pretty_name
  "Alex Haumer"
end

def tomorrow
  tomorrow_date = Date.today + 1
  return tomorrow_date.strftime("%B %d")
end

# puts tomorrow

# puts print_pretty_name

def dynamic_print_full_name(first_name, last_name)
  "#{first_name.capitalize} #{last_name.capitalize}"
end

# puts dynamic_print_full_name("ben", "baranger")
# full_name = dynamic_print_full_name("ben", "baranger")
# puts full_name

# def circle_area(radius)
#   if radius.negative?
#     # did stuff
#   else
#     # other stuff
#   end
# end

def say_hi(name)
  return "Hi #{name}."
end

# puts say_hi("Alex")     # => "Hi Alex."
# puts say_hi("Edward")   # => "Hi Edward."

# def some_method_name
#   puts "above return"
#   return
#   puts "below return"
# end

# some_method_name