Mastering Ruby Closures: A Guide to Blocks, Procs, and Lambdas (pdf)

Description

The road to Ruby mastery is paved with blocks, procs, and lambdas. To be a truly effective Ruby programmer, it’s not enough just to understand these features – you need to know how to use them in practice. Discover how to write code that is elegant, expressive, and a joy to use, and gain a deep understanding of these concepts so you can work with third-party gems and libraries more easily. Whether you are completely new to Ruby or a seasoned Rubyist, you’ll find good use for these concepts in your code.