Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trialAsa Smith
10,009 PointsUndefined method 'push' I keep getting this error. Any idea why?
def create_list
print "What is the list name? "
name= gets.chomp
hash = { "name" => name, "items:" => Array.new }
return hash
end
def add_list_item
print "What is the item called? "
item_name = gets.chomp
print "How much?"
quantity = gets.chomp.to_i
hash = { "name" => item_name, "quantity" => quantity }
end
def print_list(list)
puts "List: #{list['name']}"
puts "____"
list["items"].each do |item|
puts "Item: " + item['name']
puts "Quantity: " + ['quantity'].to_s
puts "___"
end
end
list = create_list()
puts list.inspect
list['items'].push(add_list_item())
puts list.inspect
print_list(list)
3 Answers
Grace Kelly
33,990 PointsHi Asa, I think the issue is on these lines:
hash = { "name" => name, "items:" => Array.new }
list["items"].push(add_list_item())
If you rename "items:" to "items" when you declare the hash, your code should execute, and it will also correspond with how you named "name" :)
Asa Smith
10,009 PointsThat was it. Thanks!
jeffdelacruz2
2,516 PointsHere's what I got to work.
def create_list
print "What is the list name? "
name = gets.chomp
hash = { "name": name, "items":Array.new } #since name & the array are not strings, you must reference them as symbols with the : later in the code. I think that's the issue here.
return hash
end
def add_list_item
print "What is the item called? "
item_name = gets.chomp
print "How Much? "
quantity = gets.chomp.to_i
hash = {"name": item_name, "quantity": quantity }
return hash
end
def print_list(list)
puts "List: #{list[:name]}" #Change 'name' to :name
puts "----"
list[:items].each do |item|
puts "Item: " + item[:name] #Change 'name' to :name
puts "Quantity: " + item[:quantity].to_s #Change 'quantity' to :quantity
puts "---"
end
end
#run the code
list = create_list()
puts list.inspect
list[:items].push(add_list_item()) #Change "items" to :items
print_list(list)