Videos tagged with Ruby Banter

Ruby has dedicated keywords like if and else to define conditional logic. Other languages, like IO, use methods for conditional execution of code. Manfred shows how you can use a class in Ruby to do something similar.

Sam wonders whether Ruby and Rails are really ready for the Enterprise. In this episode Manfred answers this burning question and shows how you can be an enterpisy as Java too.

This episode shows some syntactic improvements on the Function Composition code we demonstrated in the first video of the series.

The Case Equality, Treequal or Equaal operator, however you want to call it, allows us to match objects in a more meaningful manner than plain equality. In this episode Manfred shows how you can override the method on your own classes to do advanced matching. Please note that, although Manfred thinks he's implementing the disjoint set of markers, he's actually implementing the union.

Memoization is a technique for speeding up your code by caching the results of method calls. In this episode Norbert shows a Ruby implementation of memoization and how you can use it.

In Ruby the & character maps to the to_proc method. In this episode Manfred shows what you can do with it and how it works.

The sort method in Ruby uses the boat operator, sometimes called ‘spaceship’, to compare object instances. In this episode Manfred shows how you can make your objects sortable by defining the boat operator.