ENV is a hash-like accessor for environment variables.
ENV.has_value?(value) â true or false Class Public methods Returns true
ENV.length Class Public methods Returns the number of environment variables
ENV.to_s â "ENV" Class Public methods Returns âENVâ
ENV.values_at(name, ...) â Array Class Public methods Returns an array containing
ENV.key?(name) â true or false Class Public methods Returns true
ENV.inspect â string Class Public methods Returns the contents of the environment
ENV.each_pair { |name, value| } â HashENV.each_pair â Enumerator Class Public methods
ENV.key(value) â name Class Public methods Returns the name of the environment
ENV.assoc(name) â Array or nil Class Public methods Returns an Array of the
ENV.value?(value) â true or false Class Public methods Returns true
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