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Filter and map at once! Learn more in the "Collected Ruby" course on Graceful.Dev

Filter and map at once! Learn more in the "Collected Ruby" course on Graceful.Dev

"Dependency injection". Some programmers swear by it, some never want to hear the words again. But in practice, it's a big...

"Dependency injection". Some programmers swear by it, some never want to hear the words again. But in practice, it's a big term for a small, natural, and very useful technique. In this episode we'll see that "dependency injection" doesn't have to be scary, and it might even be graceful.

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Ruby's mix-in modules are a wonderfully powerful way to drop-in reusable functionality. But authoring them can be tricky. In this video,...

Ruby's mix-in modules are a wonderfully powerful way to drop-in reusable functionality. But authoring them can be tricky. In this video, now free to all from the Graceful.Dev archives, you'll learn how to author robust mixins that won't conflict with inherited methods!

https://youtu.be/SFkKBquMHSc

It's a library! No, it's an executable! Relax, your Ruby files can be both require-able libraries and executables!Get two weeks...

It's a library! No, it's an executable! Relax, your Ruby files can be both require-able libraries and executables!

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-055-runnable-library/

Beginning on the implementation of a Ruby PulseAudio API.Get two weeks free: graceful.dev/mastodon...

Beginning on the implementation of a Ruby PulseAudio API.

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-054-ffi-part-4/

Selectively running tests can be a lifesaver in a large codebase. This episode covers how to run just the tests you care about in both...

Selectively running tests can be a lifesaver in a large codebase. This episode covers how to run just the tests you care about in both MiniTest and RSpec - including how to slectively run tests under Rake.

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-053-selectively-run-tests/

Sometimes objects are missing, and sometimes that’s OK! We need a way to say it’s OK, and we have one: the “safe navigation...

Sometimes objects are missing, and sometimes that’s OK! We need a way to say it’s OK, and we have one: the “safe navigation operator”. But what exactly does it do, and what are its limitations? And why does it look the way it does in Ruby? Let’s talk about it! Full episode: https://graceful.dev/topic/safe-navigation-redux/

At the borders of our systems, mockist testing hits a point of diminishing returns. In this episode we take a look at when to stop mocking...

At the borders of our systems, mockist testing hits a point of diminishing returns. In this episode we take a look at when to stop mocking and start integration testing.

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-052-the-end-of-mocking/

FFI IT, WE'LL DO IT LIVE!Get two weeks free: graceful.dev/mastodon...

FFI IT, WE'LL DO IT LIVE!

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-051-ffi-part-3/

Sometimes a utility module is overkill. In this episode, we make a namespace module do double-duty.Get two weeks free: graceful.dev/mastodon...

Sometimes a utility module is overkill. In this episode, we make a namespace module do double-duty.

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-050-include-namespace-module/

Some functions are useful in many different contexts. In this episode we'll explore some ways to make them available both to library...

Some functions are useful in many different contexts. In this episode we'll explore some ways to make them available both to library code and to client code of a library.

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-049-utility-function/

This episode covers how to write a "macro"-a method that generates or modifies other methods-using the classic example of...

This episode covers how to write a "macro"-a method that generates or modifies other methods-using the classic example of memoizing method results.

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-048-memoize/

In part 2 of this series, we buy ourselves some peace of mind with a simple smoke test.The code for this episode can be found...

In part 2 of this series, we buy ourselves some peace of mind with a simple smoke test.
The code for this episode can be found here: https://github.com/avdi/pulse-ffi/tree/RubyTapas047

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-047-ffi-2/

In Part 2 of this series chronicling the creation of an app, I establish a test-driven rhythm, starting with a high-level acceptance...

In Part 2 of this series chronicling the creation of an app, I establish a test-driven rhythm, starting with a high-level acceptance test.
The source code for this episode is available here: https://github.com/avdi/gem-love/tree/rubytapas-episode-046

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-046-gem-love-part-2/

This cautionary episode demonstrates and explains a Hash gotcha that often comes as a surprise.Get two weeks free: graceful.dev/mastodon...

This cautionary episode demonstrates and explains a Hash gotcha that often comes as a surprise.

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-045-hash-default-value/

Somtetimes you need to know if exactly one element in a collection has a given property. For that situation, we have the #one? predicate...

Somtetimes you need to know if exactly one element in a collection has a given property. For that situation, we have the #one? predicate method.

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-044-one-2/

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...

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.

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-043-exclusive-or/

Sometimes it can feel like the browser is fighting you! Join Jessica Kerr to learn how to debug grumpy CORS errors and make the browser your...

Sometimes it can feel like the browser is fighting you! Join Jessica Kerr to learn how to debug grumpy CORS errors and make the browser your friend again. Full episode up now: https://graceful.dev/courses/the-graceful-web/modules/the-graceful-web/topic/debugging-cors-errors/

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Does code optimized for RAM usage need to be ugly? Find out, in today's episode!Get two weeks free: graceful.dev/mastodon...

Does code optimized for RAM usage need to be ugly? Find out, in today's episode!

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-042-streaming/

Today's episode looks at a convenient tool for weeding through text and pulling out parts that match a given pattern.Get two weeks free:...

Today's episode looks at a convenient tool for weeding through text and pulling out parts that match a given pattern.

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https://graceful.dev/courses/tapastry/modules/2013/topic/episode-041-string-scan/