ENV.to_a â Array Class Public methods Converts the environment variables into an array of names and value arrays. ENV.to_a # => [["TERM", "xterm-color"], ["SHELL", "/bin/bash"], ...]

ENV.to_hash â hashENV.to_h â hash Class Public methods Creates a hash with a copy of the environment variables.

ENV.to_hash â hash Class Public methods Creates a hash with a copy of the environment variables.

ENV.to_s â "ENV" Class Public methods Returns âENVâ

ENV.update(hash) â HashENV.update(hash) { |name, old_value, new_value| } â Hash Class Public methods Adds the contents of hash to the environment variables. If no block is specified entries with duplicate keys are overwritten, otherwise the value of each duplicate name is determined by calling the block with the key, its value from the environment and its value from the hash.

ENV.value?(value) â true or false Class Public methods Returns true if there is an environment variable with the given value.

ENV.values â Array Class Public methods Returns every environment variable value as an Array

ENV.values_at(name, ...) â Array Class Public methods Returns an array containing the environment variable values associated with the given names. See also ::select.

def_erb_method(methodname, erb_or_fname) Class Public methods define methodname as instance method of current module, using ERB object or eRuby file

h(s) Class Public methods Alias for: html_escape