Ruby On Rails

Tutorials

Ruby Lazy Enumerators

Ruby Lazy Enumerators Every time we use methods like map, collect, select, each we create an enumerator. Because of enumerators, methods can be chained like.

Fun with each_with_object and other Enumerator adventures

Fun with each_with_object and other Enumerator adventures A short preface: I am writing in Ruby since 2004. For last 5 years I am also participating in language development, documenting new and old features, proposing some (several got accepted) and diving deep into weirdest mysteries of the language. So...

Rails 6 adds tools for Action Cable testing.

Rails 6 adds tools for Action Cable testing. Testing Action Cable prior to Rails 6Prior to Rails 6, there were no tools for testing Action Cable functionality provided out of the box. One can use action-cable-testing gem which provides test utils for Action Cable.Rails 6 adds tools for Actio...

Opal Ruby Express Socket.io

Opal Ruby Express Socket.io Opal Ruby Express Socket.io. Contribute to sebyx07/opal-express-socketio development by creating an account on GitHub.

How to use Codefresh CI parallel steps to run RSpec a few times faster for Rails project

How to use Codefresh CI parallel steps to run RSpec a few times faster for Rails project Codefresh.io seems to be a very nice CI solution to work with if you are a Ruby developer. I’ve tested one of my projects on Codefresh to see how it allows.

How to deploy Rails 5.2 on AWS EC2 Ubuntu Nginx Passenger

How to deploy Rails 5.2 on AWS EC2 Ubuntu Nginx Passenger In this article, I will illustrate how to deploy a Rails 5.2 app on AWS EC2, Ubuntu, Nginx and Passenger in details. Install Ruby secifying a particular version that you want to use globally,.

Active Merchant is a simple payment abstraction library extracted from Shopify.

Active Merchant is a simple payment abstraction library extracted from Shopify. Active Merchant is an extraction from the ecommerce system Shopify. Shopify's requirements for a simple and unified API to access dozens of different payment gateways with very different internal APIs was the chief principle in designing the libra...

Rails 6 adds delete_by and destroy_by methods.

Rails 6 adds delete_by and destroy_by methods. Rails has provided methods like find_by, find_or_initialize_by, and find_or_create_by to fetch, initialize, and create record respectivley, based on the passed conditions.Similar method to delete or destroy record(s) was missing in Rails.As per th...

Exploring Linux File Locking Mechanisms in Ruby | λ Lambda Papers

Exploring Linux File Locking Mechanisms in Ruby | λ Lambda Papers An exploration of File Locking mechanisms and their pitfalls on Linux in Ruby.On a recent automation spree I produced a couple of hundred lines of ruby that needed persistence. The built-in PStore is a natural choice for a project that size. I’ve ...

How to Make Colors With Ruby and Bitwise Operations

How to Make Colors With Ruby and Bitwise Operations Leverage softPwn on the Raspberry Pi to control a mutli-colored LED with Ruby hexadecimal primitives, and some bitwise operations.The RGB LED I'm working with has four pins. Three of these pins take input that control the brightness level for (R)...

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