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Ruby blocks, fundamentally, are a syntactical expression of a very common idiom: a method, one of whose parameters is a block of code used to pass in behavior.
Why does Ruby have blocks? at Virtuous Code
- Things that Make Blocks Special at RubyTapas
Tag: blocks
Episode #444: Block Inherited
Learning the rules of Ruby's inheritance callbacks, in order to do defensive metaprogramming.
Episode #143: Thread Interruptions
In this episode we finally discover why the Timeout module is unsafe, and a facility new in Ruby 2.0 that makes dealing with thread interruptions much less error-prone.
Episode #122: Testing Blocks With Rspec
Last episode we looked at a simple way to test if a method executes a block as intended that will work in any test framework. But if your tool of …
Episode #121: Testing Blocks
Today's episode answers the question: how do you test that a block passed to a method is executed as intended?
Episode #110: Catch And Throw
A refactoring episode, showing how to replace exceptions-as-flow-control with the "catch" and "throw" methods.
Episode #084: Splat Group
Today we take a look at a related feature to Ruby's "splat" operator: the ability to recursively destructure arrays using grouped assignment.
Episode #081: Implicit Splat
Delving further into Ruby's destructuring assignment, or "splat", mechanism, today we look at some cases where Ruby performs splatting without an explicit '*' operator.
Episode #080: Splat Basics
Ruby supports a limited form of destructuring assignment, in the form of the "splat" operator. In today's episode we go over splat basics, in order to lay a foundation for …
Episode #070: Break
In this, the first of two episodes on the 'break' keyword, we look at how it can be applied beyond breaking out of loops.
Episode #036: Blocks, Procs, and Lambdas
How is a Proc different from a Lambda? When do you use one over the other? And how to blocks fit into all this? Today's episode attemptes to answer these …