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 trial

Ruby Ruby Collections Ruby Hashes Working with Hash Keys

Posted by Sumeet Raina
Sumeet Raina
6,420 Points

hash = { "name" => "Bread", "quantity" => 1, "calories" => 100 } puts hash.has_key?("calories") food = true

why am I getting an error?

hash.rb 
hash = { "name" => "Bread", "quantity" => 1, "calories" => 100 }
puts hash.has_key?("calories")
food = true

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

The instructions want you to set a new variable called food to true, but only if the hash variable has a key called "calories".

This code tests for the value but always sets the variable to true. To make it conditional, you could either create a conditional ("if") block around the assignment, or assign the variable directly using the test result.

And you won't need to output anything.