This week's Ruby news, issue 336

Jobs

• Senior Rails Developer at Ascent (Chicago)Small well-funded B2B startup with big goals seeking an insatiably curious and uncompromisingly customer-focused dev to take responsibility for our consumer app and APIs. Ascent
• Head of Engineering at Newspaper Club (Glasgow, UK)We're looking for a friendly, experienced tech team leader who can help us transform newspaper printing. Newspaper Club
• Software Engineer - Mid to Senior Level (London, UK)Have 2+years experience with Ruby on Rails and take pride in readable, well-designed & well-tested software? Deliveroo are hiring! Deliveroo

Can't find the right job? Want companies to apply to you?Try Hired.com.

In brief

• Effective Testing with RSpec 3: Build Ruby Apps with Confidence news
  A Pragmatic Bookshelf book that’s now in beta. 
  Myron Marston and Ian Dees
• Rails to Phoenix: A 3-day training event in Berlin news
  Learn Elixir & Phoenix, building on your Rails expertise. Enter as novice, leave ready to build with Elixir. 
  simplabs   Sponsored
• How to DRY Out your RSpec Tests using Shared Examples tutorial 
  Parth Modi
• Using HdrHistogram to Record Ruby App Performance tutorial
  HdrHistogram is a library for recording values to a histogram with configurable precision. 
  Peter Schuck
• Angular 2+ and Rails User Authentication tutorial 
  A. Vatsaev
• Caching Backend API Requests to Improve Performance tutorial 
  Guilherme Garnier
• Writing A One-Time Script in Rails tutorial
  A description of 3.5 options and how to decide which one to use. 
  Justin Weiss
• A Quick Tour of Your First Rails App tutorial 
  Rachelle LeQuesne
• Reading Ruby Code: ROM - Orientation tutorial
  The second installment in a series on how to read code, using ROM as the code base in question. 
  Michael Cordell
• Vagrant Up Your Rails Development tutorial 
  Tianwen Chen
• Mastering Ruby Exceptions tutorial
  How well do you know Ruby's exception system? This free book will take you from novice to expert. 
  Honeybadger Exception Monitoring   Sponsored
• Scaling Rails Through 650 Million Requests in 5 Days story
  The UK Parliament’s petitions site during an anti-Trump petition drive, in particular. 
  Andrew White
• Ruby Should Visibly Differentiate Functions and Properties opinion 
  Mehul Kar
• When Method Names Should Go Out with a Bang(!) opinion
  A reminder that it’s not necessarily because they are "destructive". 
  Starr Horne
• Simple Scheduler: Schedule Jobs on Heroku at Specific Intervals tools
  An enhancement to Heroku Scheduler. 
  Simply Made Apps
• SimpleFeed: Time-Ordered Activity Feeds code
  A pure-Ruby (not Rails) implementation that works for single and multi-user scenarios. 
  Konstantin Gredeskoul
• Sym: Lightweight Symmetric Encryption for Humans code
  A Ruby gem that provides API and command-line options to encrypt/decrypt sensitive data and files. 
  Konstantin Gredeskoul
• Trtl: Logo/turtle.py-Style Turtle Graphics for Ruby code 
  Peter Cooper