Feature #10017
Updated by nobu (Nobuyoshi Nakada) almost 10 years ago
I'm proposing to add a new method `Hash#values_at!` that's basically a combination of `#values_at` and `#fetch`. When dealing with configuration I prefer to use `#fetch` to fail early and this would be useful to read multiple keys at a time. An example (not strictly on a Hash, but you get the idea) could be: ```ruby ``` repo, token = ENV.values_at!('GITHUB_REPO', 'GITHUB_TOKEN') ENV.values_at!('INVALID') # raises KeyError # not sure if that useful, but I provide it here for the sake of completeness ENV.values_at!("SHELL", "INVALID") { |k| k + " is missing" } # => ["/bin/bash", "INVALID is missing"] ``` Another name for this could be `#fetch_at`, perhaps. P.S. I'm attaching a patch that was done using mostly trial and error