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Ruby

Posted by Michael Crawbuck
Michael Crawbuck
11,026 Points

Working with Hash Keys(has_key? code challenge)

Using the has_key? method, check if the hash variable has a key called "calories". If it does, set a new variable called "food" to true.

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

Not entirely sure what I'm doing incorrectly. The error I keep getting is that "the food variable is not found" I've also tried this using the store method: 

if hash.has_key?("calories")
  hash.store("food", true)
end

Any help would be great.

2 Answers

Jason Anello
PLUS
Jason Anello
Courses Plus Student 94,610 Points
Jason Anello
Jason Anello
Courses Plus Student 94,610 Points

Hi Michael,

food should be a new variable that you set to true, not added as a key to the hash.

food = true

Michael Crawbuck
Michael Crawbuck
11,026 Points

Appreciated, thank you very much.

Noah Yasskin
Noah Yasskin
23,947 Points
Noah Yasskin
Noah Yasskin
23,947 Points

I had a similar challenge. I wanted to use hash.store("food", true) like the video but it wants something simpler:

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