ruby - Is there a one liner or more efficient way to get this done? -

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given hash, example:

hash = { "fish" => 2, "cat" => 3, "dog" => 1 }

i need get:

  1. a comma separated string values, e.g. "2,3,1"
  2. an integer hold total sum of values, e.g. 6

my current code:

value_string = hash.map { |k,v| "#{v}"}.join(',') sum = 0 hash.map { |k,v| sum += v}

you can this:

hash.values.join(",") # => "2,3,1" hash.values.inject(:+) # => 6

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