#dig lets you easily traverse nested hashes, arrays, or even a mix of them. It returns nil if any intermediate value is missing.

x = {
  foo: {
    bar: [ 'a', { baz: 'x' } ]
  }
}

x.dig(:foo, :bar) # => [ 'a', { baz: 'x' } ]
x.dig(:foo, :bar, 1, :baz) # => "x"
x.dig(:foo, :wronk, 1, :baz) # => nil

Rails Long Term Support

Rails LTS provides security patches for old versions of Ruby on Rails (2.3, 3.2, 4.2 and 5.2)

• Prevents you from data breaches and liability risks
• Upgrade at your own pace
• Works with modern Rubies

Read more Show archive.org snapshot

There is a tiny gem that backports this Show archive.org snapshot .