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lrthw/exercises/ex32.rb

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2023-09-30 13:20:59 +00:00
the_count = [1, 2, 3, 4, 5]
fruits = ["apples", "oranges", "pears", "apricots"]
change = [1, "pennies", 2, "dimes", 3, "quarters"]
# this first kind of for-loop goes through a list
# in a more traditional style found in other languages
# for number in the_count
# puts "This is count #{number}"
# end
the_count.each do |number|
puts "This is count #{number}"
end
# same as above, but in a more Ruby style
# this and the next one are the preferred
# way Ruby for-loops are written
fruits.each do |fruit|
puts "A fruit of type: #{fruit}"
end
# also we can go through mixed lists too
# note this is yet another style, exactly like above
# but a different syntax (way to write it).
change.each { |i| puts "I got #{i}" }
# we can also build lists, first start with an empty one
elements = []
# then use the range operator to do 0 to 5 counts
6.times do |i|
puts "adding #{i} to the list."
# pushes the i variable on the *end* of the list
elements.push(i)
end
# now we can print the out too
elements.each { |i| puts "Element was: #{i}" }