Class HashWithIndifferentAccess
In: lib/active_support/core_ext/hash/indifferent_access.rb
Parent: Hash

This class has dubious semantics and we only have it so that people can write params[:key] instead of params[‘key’] and they get the same value for both keys.

Methods

External Aliases

[]= -> regular_writer

Public Class methods

Public Instance methods

Assigns a new value to the hash:

  hash = HashWithIndifferentAccess.new
  hash[:key] = "value"

Removes a specified key from the hash.

Returns an exact copy of the hash.

Fetches the value for the specified key, same as doing hash[key]

Checks the hash for a key matching the argument passed in:

  hash = HashWithIndifferentAccess.new
  hash["key"] = "value"
  hash.key? :key  # => true
  hash.key? "key" # => true

Merges the instantized and the specified hashes together, giving precedence to the values from the second hash Does not overwrite the existing hash.

Convert to a Hash with String keys.

Updates the instantized hash with values from the second:

  hash_1 = HashWithIndifferentAccess.new
  hash_1[:key] = "value"

  hash_2 = HashWithIndifferentAccess.new
  hash_2[:key] = "New Value!"

  hash_1.update(hash_2) # => {"key"=>"New Value!"}

Returns an array of the values at the specified indices:

  hash = HashWithIndifferentAccess.new
  hash[:a] = "x"
  hash[:b] = "y"
  hash.values_at("a", "b") # => ["x", "y"]

[Validate]