fxn

Ruby: The future of frozen string literals

What is a literal?

In programming languages, literals are textual representations of values in the source code. This is a syntactical concept.

Some examples:

7 # integer literal

dhh

#!/usr/bin/env bash

# Abort sign off on any error
set -e

# Start the benchmark timer
SECONDS=0

# Repository introspection
OWNER=$(gh repo view --json owner --jq .owner.login)

yahonda

Ruby 3.1 on Rails

Actions required to use Ruby 3.1.0 with Rails

Rails 7.0.Z

• Rails 7.0.1 is compatible with Ruby 3.1.0.
• Rails 7.0.1 addes net-smtp, net-imap and net-pop gems as Action Mailbox and Action Mailer dependency, you do not need to add them explicitly in your application Gemfile anymore.
• thor 1.2.1 has been released. You will not see DidYouMean::SPELL_CHECKERS.merge deprecate warnings anymore.

Rails 6.1.Z

• Use Rails 6.1.5 to support database.yml with aliases and secrets.yml with aliases.

stevedodson

Introduction to supervised machine learning in Elastic webinar

Tuesday, February 25, 2020

Wednesday, May 27, 2020 - updated customer_churn.ipynb for version 7.7.0

Monday, November 16, 2020 - updated for version 7.10 and eland 7.10b

Monday, September 20, 2021 - updated customer_churn.ipynb for version 7.14

Monday, February 8, 2022 - updated customer_churn.ipynb for version 8.0

dcorking

require 'rails_helper'

RSpec.describe '/oauth/', type: :request do
  let(:application) { create(:doorkeeper_application, confidential: false) }
  let(:user) { create(:user, email: '[email protected]', password: "PASSWORD") }
  let(:valid_params) do
    {
      username: user.email,
      password: "PASSWORD",
      grant_type: 'password',

dcorking

# run with
# ruby tools/demo-option-parser.rb --skip-download
# or
# bundle exec rails runner tools/demo-option-parser.rb --skip-download

require 'optparse' # not needed for rails runner

skip = nil
p ARGV # ["--skip-download"]

dcorking

# /app/helpers/footer_helper.rb
module FooterHelper
  # year, or range of years with en dash if needed
  # @param start_year [Integer]
  # @return [String] this year, or range of years if started before this year
  # rubocop:disable Style/AsciiComments
  # for example in 2019, copyright_year_range(2019) is '2019' and
  # copyright_year_range(2016) is '2016–2019'
  # rubocop:enable Style/AsciiComments
  #

dcorking

/* for use as a user style, for example in a browser extension like Stylus for Google Chrome */

#hot-network-questions {
    display: none
}

mohanpedala

Table of Contents

• set -e, -u, -x, -o pipefail
• set -e
• set -x
• set -u
• set -o pipefail
• Setting IFS
• Original Reference

set -e, -u, -x, -o pipefail

mrmartineau

Stimulus cheatsheet

• Website: https://stimulusjs.org/
• GitHub repo: https://github.com/stimulusjs/stimulus
• Handbook: https://stimulusjs.org/handbook/introduction
• Discourse: https://discourse.stimulusjs.org/

Lifecycle callbacks

• initialize: once, when the controller is first instantiated
• connect: anytime the controller is connected to the DOM