sqbell

Ruby 3.1 on Rails

Actions required to use Ruby 3.1.0 with Rails

Rails 7.0.Z

• Rails 7.0.0 is not compatible with Ruby 3.1.0.
• "Rails::Engine is abstract, you cannot instantiate it directly.."

  $ bin/rails s
  Calling `DidYouMean::SPELL_CHECKERS.merge!(error_name => spell_checker)' has been deprecated. Please call `DidYouMean.correct_error(error_name, spell_checker)' instead.

[WARNING] Could not load command "rails/commands/server/server_command". Error: Rails::Engine is abstract, you cannot instantiate it directly..

sqbell

One of the many reasons I love working with Ruby is it has a rich vocabulary that allows you to accomplish your goals with a minimal amount of code. If there isn't a method that does exactly what you want, it's usually possible to build an elegant solution yourself.

Let's take the example of simulating the rolling of a die.

We can represent a die as an array of its faces.

die = [*?⚀..?⚅]
# => ["⚀", "⚁", "⚂", "⚃", "⚄", "⚅"]

sqbell

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

sqbell

# This class provides most of the features you'd get from i18n-active_record,
# only simpler and lighter.
class Translation < ActiveRecord::Base
  class Backend < I18n::Backend::KeyValue
    module Implementation
      attr_reader :store

      def initialize(subtress = true)
        @store = Store.new
        super store, subtress