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https://api.rubyonrails.org/classes/ActiveSupport/HashWithIndifferentAccess.html
hash = ActiveSupport::HashWithIndifferentAccess.new(a: 1) hash[0] = 0 hash # => {"a"=>1, 0=>0} but this class is intended for use cases where strings or symbols are the expected keys and it is convenient to understand both as the same.
https://api.rubyonrails.org/v5.2/classes/ActiveSupport/HashWithIndifferentAccess.html
hash = ActiveSupport::HashWithIndifferentAccess.new(a: 1) hash[0] = 0 hash # => {"a"=>1, 0=>0} but this class is intended for use cases where strings or symbols are the expected keys and it is convenient to understand both as the same.
http://ruby-journal.com/quick-guide-to-activesupport-hashwithindifferentaccess/
We could typecast the key to either String or Symbol but it would soon emerge an annoying pattern. Instead, with the help of ActiveSupport, you can create a hash with no differences if accessing using String or Symbol key. Introducing ActiveSupport::HashWithIndifferentAccess.
https://codequizzes.wordpress.com/2014/02/13/rails-activesupporthashwithindifferentaccess/
Feb 13, 2014 · HashWithIndifferentAccess inherits from the Hash class and is defined in the ActiveSupport module (one of the key modules used by Rails). HashWithIndifferentAccess objects are instantiated with a normal hash, convert all the keys that are symbols to strings, and allows access to the values with either the string or symbol.
https://msp-greg.github.io/rails_stable/ActiveSupport/HashWithIndifferentAccess.html
hash = ActiveSupport::HashWithIndifferentAccess.new(a: 1) hash[0] = 0 hash # => {"a"=>1, 0=>0}. but this class is intended for use cases where strings or symbols are the expected keys and it is convenient to understand both as the same. For example the params hash in Ruby on ::Rails.
https://gist.github.com/tiagoamaro/c82a27aceedfc901b081
Jul 23, 2019 · ActiveSupport's HashWithIndifferentAccess access benchmark vs common Ruby Hash - hash_with_indifferent_access_benchmark.rb
https://stackoverflow.com/questions/31890778/difference-between-ruby-s-hash-and-activesupport-s-hashwithindifferentaccess
hash = ActiveSupport::HashWithIndifferentAccess.new(a: 1) You are guaranteed that the key is returned as a string: hash.keys # => ["a"]
https://github.com/rails/rails/pull/36880
Support multiple arguments in `HashWithIndifferentAccess` for `merge` and update methods #36880
https://stackoverflow.com/questions/14656812/associationtypemismatch-object-expected-got-hashwithindifferentaccess-in-rail
Poking around in the rails console, I figured I need to create Preference.new inside the UserController before I can pass in the hash. Since I'm not sure sure what build_preference does exactly, I'm …
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