hash.rassoc(obj) â an_array or nil
Instance Public methods
Searches through the hash comparing obj with the value using
==. Returns the first key-value pair (two-element array) that
matches. See also Array#rassoc.
a = {1=> "one", 2 => "two", 3 => "three", "ii" => "two"}
a.rassoc("two") #=> [2, "two"]
a.rassoc("four") #=> nil
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