Eliminating astonishment with a special Ruby idiom for object creation.
Tag: operators
Episode #391: Hash Subset
A new feature in Ruby 2.3 makes it easier to compare hashes by value.
Episode #266: Pattern Matching
Ever wanted to have fancy pattern-matching in Ruby like that found in languages like Erlang or Elixir? Well, today we'll construct the ability to do just that!
Episode #223: Equalizer
We know that Value Objects are useful; today we'll meet a gem that makes them easier to build.
Episode #218: Spaceship Revisited
In episode 205 we introduced the spaceship (<=>) operator, but we also introduced an incompatibility with how Ruby's builtin comparisons work. Today we'll address this oversight.
Episode #202: Identity And Equality
Today's episode deals with the concepts of identity and equality - what makes one object equal to another.
Episode #159: Array Set Operations
Sometimes we'd like to treat Ruby arrays like sets, in which each item is unique. Today's dish shows how!
Episode #125: And/Or
Ruby has both symbolic and English forms of the logical "and" and "or" operators. Which one to choose may seem like a matter of taste, but that assumption can get …
Episode #043: Exclusive Or
This episode looks at Ruby's logical XOR operator, and how it can be useful in checking that a method was called with the correct optional arguments.