find the values of a map in ruby

To find the values of a map (also known as a hash) in Ruby, you can use the values method. This method returns an array containing the values of the hash.

Here's an example:

main.rb
my_hash = { "key1" => "value1", "key2" => "value2", "key3" => "value3" }

values_array = my_hash.values

puts values_array.inspect  # Output: ["value1", "value2", "value3"]
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In this example, we create a hash called my_hash with three key-value pairs. We then call the values method on my_hash and save the result in values_array. Finally, we print the contents of values_array to the console using inspect.

Note that the order of the values in the resulting array is not guaranteed to be the same as the order of the keys in the hash. If you need to preserve the order, you can use the sort_by method in combination with the values_at method, like this:

main.rb
my_hash = { "key1" => "value1", "key2" => "value2", "key3" => "value3" }

values_array = my_hash.sort_by { |k, _| k }.values_at(*my_hash.keys)

puts values_array.inspect  # Output: ["value1", "value2", "value3"]
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In this example, we first sort the hash by keys using sort_by. We then call the values_at method with the splat operator (*) to extract the values in the same order as the sorted keys. Finally, we print the contents of values_array to the console using inspect.