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Articles by Joël Quenneville

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  1. Testing Your Edge Cases

    A little combination math goes a long way to catching edge cases.

    Joël Quenneville
    September 8, 2021
    • Testing
    • Ruby
    • Development
  2. Back to Basics: Boolean Expressions

    Write Boolean expressions using operators instead of if/else for a more readable outcome.

    Joël Quenneville
    June 28, 2021
    • Back To Basics
    • Ruby
    • Development
    • Web
  3. Pipeline Decoders in Elm

    What’s the difference between Elm’s classical and pipeline JSON decoders?

    Joël Quenneville
    May 19, 2021
    • Elm
    • Functional Programming
    • Web
  4. Running Out of Maps

    What happens when you need a bigger mapN?

    Joël Quenneville
    May 12, 2021
    • Elm
    • Web
    • Functional Programming
  5. Classical Reasoning and Debugging

    Classical philosophy offers us multiple reasoning strategies for dealing with tricky bugs.

    Joël Quenneville
    April 30, 2021
    • Debugging
    • Debugging Series 2021
  6. Debugging: Listing Your Assumptions

    Kick-start your debugging process by turning implicit assumptions into explicit ones.

    Joël Quenneville
    April 16, 2021
    • Debugging
    • Debugging Series 2021
  7. Simplifying Tests by Extracting Side-Effects

    Test-driven development, object-oriented design, and functional programming converge on some similar ideas.

    Joël Quenneville
    February 18, 2021
    • Web
    • Ruby
    • TDD
    • Testing
    • Functional Programming
    • Good Code
  8. Testing Objects with a Functional Mindset

    Some ideas from functional programming can help us improve the unit tests for our object-oriented code.

    Joël Quenneville
    January 19, 2021
    • Web
    • Functional Programming
    • Testing
    • Good Code
    • Ruby
  9. Conference Talk Proposal Examples

    Opening up the archives! All of Joël Quenneville’s conference talk proposals, both accepted and rejected.

    Joël Quenneville
    February 6, 2020
    • Conferences
    • Writing
  10. Best resources to upskill your technical team

    Tried and tested techniques to keep your Ruby on Rails or React Native team up to date.

    Joël Quenneville
    December 23, 2019
    • Teams
    • Culture
    • Code Review
    • Pair Programming
    • Playbook
    • Ruby On Rails
    • People Management
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