How to query nested hash in Ruby?

Question

What is the quickest way in Ruby to retrieve the correct hash by language from the following nested hash:

COUNTRIES = {
  "DE" => {:currency => "EUR", :tax_rates => [19, 7], :languages => ["de-de"]},
  "US" => {:currency => "USD", :tax_rates => [10], :languages => ["en-us"]}
}

I managed to retrieve the correct hash by providing the currency:

COUNTRIES.select{|key, hash| hash[:currency] == "USD" }

But how can I query by a language, for example by en-us?

Thanks for any help.

Josh Brody · Accepted Answer · 2018-01-19 10:36:12Z

3

COUNTRIES.select{|key, hash| hash[:languages].include?("en-us")}

of note, if you're only looking for a singular result, it's cheaper to use #detect than it is to use #select.first

answered Jan 19, 2018 at 10:36

Josh Brody

5,3911 gold badge16 silver badges26 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to query nested hash in Ruby?

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related