hashwithindifferentaccess | Daniel P. Clark

May 28, 2015 by Daniel P. Clark

Rails’ HashWithIndifferentAccess

A Ruby Hash is a very powerful collection type to use in Ruby. When working in Rails sometimes you’ll have symbols as keys or sometimes they will be strings. If you use a normal Hash these will store as different keys for the same name.


sample = Hash.new
sample[:a] = 1
sample["a"] = 2
sample
# => {:a=>1, "a"=>2}

sample = Hash.new

sample[:a] = 1

sample["a"] = 2

sample

# => {:a=>1, "a"=>2}

Rails has another version of Hash that will map…