Metorex

ENV

ruby/spec describes 49 methods in core/env, and Metorex implements 49 of them. The parameters are what Method#parameters answers under Metorex.

  • ENV.[]: implemented, parameters [[:req]]. Returns the value for the environment variable name if it exists:
  • ENV.[]=: implemented, parameters [[:req], [:req]]. Creates, updates, or deletes the named environment variable, returning the value.
  • ENV.assoc: implemented, parameters [[:req]]. Returns a 2-element Array containing the name and value of the environment variable for name if it exists: An example calling it.
  • ENV.clear: implemented, parameters []. Removes every environment variable; returns ENV:
  • ENV#clone: implemented, parameters [[:rest, :options]]. Raises TypeError, because ENV is a wrapper for the process-wide environment variables and a clone is useless. An example calling it.
  • ENV.delete: implemented, parameters [[:req]]. Deletes the environment variable with name if it exists and returns its value: An example calling it.
  • ENV.delete_if: implemented, parameters []. Yields each environment variable name and its value as a 2-element Array, deleting each environment variable for which the block returns a truthy value, and returning ENV (regardless of whether any deletions): An example calling it.
  • ENV#dup: implemented, parameters []. Raises TypeError, because ENV is a singleton object. An example calling it.
  • ENV.each: implemented, parameters []. Yields each environment variable name and its value as a 2-element Array:
  • ENV.each_key: implemented, parameters []. Yields each environment variable name:
  • ENV.each_pair: implemented, parameters []. Yields each environment variable name and its value as a 2-element Array:
  • ENV.each_value: implemented, parameters []. Yields each environment variable value:
  • ENV.empty?: implemented, parameters []. Returns true when there are no environment variables, false otherwise:
  • ENV.except: implemented, parameters [[:rest]]. Returns a hash except the given keys from ENV and their values.
  • ENV.fetch: implemented, parameters [[:rest]]. If name is the name of an environment variable, returns its value: An example calling it.
  • ENV.fetch_values: implemented, parameters [[:rest]].
  • ENV.filter: implemented, parameters []. Yields each environment variable name and its value as a 2-element Array, returning a Hash of the names and values for which the block returns a truthy value:
  • ENV.filter!: implemented, parameters []. Yields each environment variable name and its value as a 2-element Array, deleting each entry for which the block returns false or nil, and returning ENV if any deletions made, or nil otherwise:
  • ENV.has_key?: implemented, parameters [[:req]]. Returns true if there is an environment variable with the given name: An example calling it.
  • ENV.has_value?: implemented, parameters [[:req]]. Returns true if value is the value for some environment variable name, false otherwise: An example calling it.
  • ENV.include?: implemented, parameters [[:req]]. Returns true if there is an environment variable with the given name: An example calling it.
  • ENV.inspect: implemented, parameters []. Returns the contents of the environment as a String:
  • ENV.invert: implemented, parameters []. Returns a Hash whose keys are the ENV values, and whose values are the corresponding ENV names:
  • ENV.keep_if: implemented, parameters []. Yields each environment variable name and its value as a 2-element Array, deleting each environment variable for which the block returns false or nil, and returning ENV:
  • ENV.key: implemented, parameters [[:req]]. Returns the name of the first environment variable with value, if it exists: An example calling it.
  • ENV.key?: implemented, parameters [[:req]]. Returns true if there is an environment variable with the given name: An example calling it.
  • ENV.keys: implemented, parameters []. Returns all variable names in an Array:
  • ENV.length: implemented, parameters []. Returns the count of environment variables:
  • ENV.member?: implemented, parameters [[:req]]. Returns true if there is an environment variable with the given name: An example calling it.
  • ENV.merge!: implemented, parameters [[:rest]]. Adds to ENV each key/value pair in the given hash; returns ENV:
  • ENV.rassoc: implemented, parameters [[:req]]. Returns a 2-element Array containing the name and value of the first found environment variable that has value value, if one exists: An example calling it.
  • ENV.rehash: implemented, parameters []. (Provided for compatibility with Hash.)
  • ENV.reject: implemented, parameters []. Yields each environment variable name and its value as a 2-element Array.
  • ENV.reject!: implemented, parameters []. Similar to ENV.delete_if, but returns nil if no changes were made.
  • ENV.replace: implemented, parameters [[:req]]. Replaces the entire content of the environment variables with the name/value pairs in the given hash; returns ENV. An example calling it.
  • ENV.select: implemented, parameters []. Yields each environment variable name and its value as a 2-element Array, returning a Hash of the names and values for which the block returns a truthy value:
  • ENV.select!: implemented, parameters []. Yields each environment variable name and its value as a 2-element Array, deleting each entry for which the block returns false or nil, and returning ENV if any deletions made, or nil otherwise:
  • ENV.shift: implemented, parameters []. Removes the first environment variable from ENV and returns a 2-element Array containing its name and value:
  • ENV.size: implemented, parameters []. Returns the count of environment variables:
  • ENV.slice: implemented, parameters [[:rest]]. Returns a Hash of the given ENV names and their corresponding values:
  • ENV.store: implemented, parameters [[:req], [:req]]. Creates, updates, or deletes the named environment variable, returning the value.
  • ENV.to_a: implemented, parameters []. Returns the contents of ENV as an Array of 2-element Arrays, each of which is a name/value pair:
  • ENV.to_h: implemented, parameters []. With no block, returns a Hash containing all name/value pairs from ENV: An example calling it.
  • ENV.to_hash: implemented, parameters []. Returns a Hash containing all name/value pairs from ENV: An example calling it.
  • ENV.to_s: implemented, parameters []. Returns String 'ENV':
  • ENV.update: implemented, parameters [[:rest]]. Adds to ENV each key/value pair in the given hash; returns ENV:
  • ENV.value?: implemented, parameters [[:req]]. Returns true if value is the value for some environment variable name, false otherwise: An example calling it.
  • ENV.values: implemented, parameters []. Returns all environment variable values in an Array:
  • ENV.values_at: implemented, parameters [[:rest]]. Returns an Array containing the environment variable values associated with the given names:

The method summaries are the first sentences of Ruby's own documentation for each method, read from MRI 4.0.6's ri data. Ruby's documentation is distributed under Ruby's license.