# CareerFoundry Exercise 21

# this is a comment

# puts is "put string".
# this will output without any "" on the terminal because it is already a string value
puts "hello, world!"
puts "42"


# p is for "print"
p "hello, world again using p!"
p 42 + 200
p 84 * 4

# METHODS
def greeting(name) 			# define the method using the def keyword. this is like a function in js
	p "hello" + " " + name	# code goes here
end 						# always end/close the method using the "end" keyword

greeting("Ekel") 			# call the method using its name


# METHODS USING VARIABLES
my_name = "Ekel Duran Echevarria"	# define variable. small caps, snake_case preferred
def greeting_by_variable(my_name)
	p "hello" + " " + my_name
end
greeting_by_variable(my_name)


# METHOD WITH USER INPUT
def greeting_with_user_input
	puts "Please enter your name"
	username = gets.chomp			# gets = "get string". chomp will remove new line
	puts "Hello, " + username
end
greeting_with_user_input			# call method. no arguments necessary.