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hello i don’t understand something
what does it mean “Make sure to test your program by choosing ‘delete’”
my code is correct but i can’t pass this step because of that
thank you for helping me
So when I run this code, in the web console it asks what I want to do. When I type delete it skips over the title = gets.chomp code and tells me the name does not exist.
Any suggestions?
movies = {
StarWars: 4.8,
Divergent: 4.7
}
puts "What would you like to do? "
choice = gets.chomp
case choice
when "add"
puts "What movie would you like to add? "
title = gets.chomp
if movies[title.to_sym].nil?
puts "What rating does the movie have? "
rating = gets.chomp
movies[title.to_sym] = rating.to_i
else
puts "That movie already exists! Its rating is #{movies[title.to_sym]}."
end
when "update"
puts "What movie would you like to update? "
title = gets.chomp
if movies[title.to_sym].nil?
puts "That movie does not exist."
else
puts "What is the new rating? "
rating = gets.chomp
movies[title.to_sym] = rating.to_i
end
when "display"
movies.each do |title, rating|
puts "#{title}: #{rating}"
end
when "delete"
puts "Which movie would you like to delete?"
title = gets.chomp
if movies[title.to_sym].nil?
puts "That movie does not exist."
elsif
movies.delete(title.to_sym)
puts "#{title} has been deleted."
else
puts "Error!"
end
end
Does anyone know why we don’t use movies[title.to_sym] = rating.to_i in the “delete” part of the code? I thought the purpose of having movies[title.to_sym] = rating.to_i in our code was to convert whatever answer the user typed in to a symbol and integer, respectively. How does Ruby know to delete a title if movies[title.to_sym] = rating.to_i is not part of the “delete” section? Is this because the hash has already been saved? Or is it because movies[title.to_sym] is already included in the code? Doesn’t the integer have to be manually deleted alongside the symbol? Or does it get automatically deleted once we delete the symbol?
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