The Ray Tracer Challenge: "discuss" link is broken, possibly also "report erratum" (All pages)

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Programming Phoenix 1.4: Chapter 11 - Extracting Rumbl and RumbleWeb (Page 237, 238, 240)

First, the code resources: Page 237: rumbl_umbrella/apps/rumbl/mix.exs Note: That this file is missing. Page 238: rumbl_umbrella/app...

#errata /book-programming-phoenix-1-4

1 1105 2

2021-05-19 11:32:45 UTC

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Programming Phoenix LiveView: B03 (page 56-57) auth exercise

Dear Sophie. I tried to do the “Authorization” exercise and have two questions: When trying to plug in an email-service, I found the ...

#question /book-programming-phoenix-liveview

1 1179 3

2021-05-04 15:14:02 UTC

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Domain Modeling Made Functional: Missing diagram on page 18

The book has the same “Problem space/Solution space” diagram on page 18 as is on page 17. The correct Problem/Solution space diagrams ar...

#errata /book-domain-modeling-made-functional

1 1069 1

2021-09-11 17:34:22 UTC

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Python Testing with pytest, Second Edition: File not Found Error (page 43)

I ran this command after installing the sample application: $ cards add do something --owner Brian And got a file not found error: Fil...

#errata /book-python-testing-with-pytest-second-edition

5 4362 7

2021-07-03 13:51:08 UTC

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Python Testing with pytest, Second Edition:Abou epub format

Is the book’s epub format available to read on Google Play Books?

#question /book-python-testing-with-pytest-second-edition

0 1119 3

2022-01-20 20:47:42 UTC

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Agile Web Development with Rails 7: Example code does not work delete method (page 78)

On page 78 the following code appears: <%= link_to ‘Destroy’, product, class: ‘hover:underline’, method: :delete, data: { confirm...

#suggestion /book-agile-web-development-with-rails-7

1 1263 2

2022-01-29 08:01:09 UTC

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Real-Time Phoenix: ProductChannelTest - undefined function describe/2 (pg 203)

Hi, I am getting an error I cannot figure out on my test. I have what I think is the exact code from the book, other than I changed “us...

#question /book-real-time-phoenix

0 1761 6

2022-02-16 19:15:15 UTC

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Modern Front-End Development for Rails - application does not start after run bin/setup (page xviii)

After some hassle, I was able to finally run bin/setup, now I have started the rails server but I get this error message right when I vis...

#errata /book-modern-front-end-development-for-rails

0 1460 5

2022-06-03 09:50:10 UTC

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Modern front-end development for Rails, second edition - Struggling to get the first chapter to work

After running /bin/setup, the first error was: The foreman' command exists in these Ruby versions: That was easy to fix: gem install fore...

#errata /book-modern-front-end-development-for-rails

1 1108 3

2023-06-22 14:09:32 UTC

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Programming Machine Learning: some plot files are throwing error

I got this error when executing the plot files on macOS Ventura 13.0.1 with Python 3.10.8 and matplotlib 3.6.1: programming_ML/code/03_...

#question /book-programming-machine-learning

1 3035 5

2023-09-17 09:42:29 UTC

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What are you watching?

Or looking forward to? :nerd_face:

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480 9242 251

2024-11-13 14:03:50 UTC

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Poll: Which code editor do you use?

You might be thinking we should just ask who’s not using VSCode :joy: however there are some new additions in the space that might give V...

#community #polls /vim /emacs #code-editors /vscode #notepad /sublime-text #atom /textmate #codespaces #brackets /onivim #geany

105 4481 50

2024-11-24 11:59:08 UTC

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Backend>Questions

Erlang's not installing on macOS Big Sur "You are natively building Erlang/OTP for a later version of MacOSX than current version"

Just done a fresh install of macOS Big Sur and on installing Erlang I am getting: asdf install erlang 23.1.2 Configure failed. checking ...

#macos /erlang #big-sur #asdf

10 5455 8

2021-01-16 12:33:23 UTC

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General Dev>Dev Chat

What are the 'coolest' languages and tech right now?

Inspired by this post from @Carter, which languages, frameworks or other tech or tools do you think is killing it right now? :upside_down...

#community /elixir /erlang /rust /typescript /phoenix #otp /svelte /wasm #adoption #cool-tech /agda

160 3694 49

2021-07-29 23:47:45 UTC

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General Dev>Hardware

GMK Serika Keycaps - Serika 2 available to order now!

I have seen the keycaps I want - they are due for a group-buy this week but won’t be delivered until October next year!!! :rofl: The Ser...

/keyboards #keycaps #mechanical-keyboards

9 4241 7

2020-12-05 21:32:30 UTC

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Rails console using 100% CPU in dev (fix)

If you are experiencing Rails console using 100% CPU on your dev machine, then updating your development and test gems might fix the issu...

/ruby /rails

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2021-02-04 07:08:45 UTC

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General Dev>Sales

Get 50% off these PragProg books during our Think Again Sale

Think Again 50% Off Sale » The theme of this sale is new perspectives on familiar topics. Enter coupon code ThinkAgain2021 at checkout t...

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2021-05-11 23:06:15 UTC

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PragProg’s Medium Posts

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2025-05-27 16:17:03 UTC

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Spotlight: Sophie DeBenedetto (Author) Interview and AMA!

Author Spotlight: Sophie DeBenedetto @SophieDeBenedetto The days of the traditional request-response web application are long gone, b...

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2023-10-17 17:12:53 UTC

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DeepSeek (671B) running on a cluster of 8 Mac Mini Pros with 64GB RAM each

This is cool! DEEPSEEK-V3 ON M4 MAC: BLAZING FAST INFERENCE ON APPLE SILICON We just witnessed something incredible: the largest open-s...

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2025-01-29 18:43:37 UTC

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The Ray Tracer Challenge: "discuss" link is broken, possibly also "report erratum" (All pages)

64kramsystem

The Ray Tracer Challenge: "discuss" link is broken, possibly also "report erratum" (All pages)

First Post!

Margaret

Popular Pragmatic Bookshelf topics

Programming Phoenix 1.4: Chapter 11 - Extracting Rumbl and RumbleWeb (Page 237, 238, 240)

Programming Phoenix LiveView: B03 (page 56-57) auth exercise

Domain Modeling Made Functional: Missing diagram on page 18

Python Testing with pytest, Second Edition: File not Found Error (page 43)

Python Testing with pytest, Second Edition:Abou epub format

Agile Web Development with Rails 7: Example code does not work delete method (page 78)

Real-Time Phoenix: ProductChannelTest - undefined function describe/2 (pg 203)

Modern Front-End Development for Rails - application does not start after run bin/setup (page xviii)

Modern front-end development for Rails, second edition - Struggling to get the first chapter to work

Programming Machine Learning: some plot files are throwing error