deli.rb

amandas_deli = []

def take_a_number(amandas_deli, customer)
	amandas_deli << customer
	puts "#{customer}, you are number #{amandas_deli.count} in line." 
	#counts number of elements in array
end

def line(amandas_deli)
	puts "The line is currently:"
	amandas_deli.each_with_index {|customer, i| puts "#{i+1}. #{customer}"}
end

def now_serving(amandas_deli)
	puts "Currently serving #{amandas_deli.shift}." 
	#shift removes first element and returns it, shifting all elements down.
end


take_a_number(amandas_deli, "Ada") #Ada, you are number 1 in line.
take_a_number(amandas_deli, "Grace") #Grace, you are number 2 in line.
take_a_number(amandas_deli, "Kent") #Kent, you are number 3 in line.

line(amandas_deli) #=> "The line is currently: 1. Ada 2. Grace 3. Kent"

now_serving(amandas_deli) #=> "Currently serving Ada"

line(amandas_deli) #=> "The line is currently: 1. Grace 2. Kent"

take_a_number(amandas_deli, "Matz") #=> "3"

line(amandas_deli) #=> "The line is currently: 1. Grace 2. Kent 3. Matz"

now_serving(amandas_deli) #=> "Currently serving Grace"

line(amandas_deli) #=> "1. Kent 2. Matz"