key_dial

Avoid all errors when accessing (deeply nested) Hash, Array or Struct keys. Safer than dig(), as will quietly return nil (or your default) if the keys requested are invalid for any reason at all. Bonus: you don't even need to fiddle with existing code. If you have already written something to access a deep key (e.g. hash[:a][:b][:c]), just surround this with '.dial' and '.call'.