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The code listing
(defn file-names [files]
(map File/.getName files))
-> #'user/file-names
(file-name (.listFiles (File. ".")))
-&g...
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“Follow the instructions in the README file at the root of the sample code for the book to start a REPL, then enter the following…”
Curr...
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In the listing of the `rag()` function on page 116, no value is returned. But when that method is invoked in the code listing on page 117...
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Title: eloquent-ruby-second-edition_B1.0.pdf
Example: page 19
/All of the In the Wild examples have been updated to reflect the code th...
New
The output listed does not match the output from the program listed above. It should have preserved the right-justification of the data.
New
This Week's Trending
The code listing
(defn file-names [files]
(map File/.getName files))
-> #'user/file-names
(file-name (.listFiles (File. ".")))
-&g...
New
“Follow the instructions in the README file at the root of the sample code for the book to start a REPL, then enter the following…”
Curr...
New
This Month's Trending
Hi Jamis,
I’ve been working my way through Chapter 10: Generalising Patterns and came up agains a problem with the gradient. When appli...
New
The code block for the imports in the snake game doesn’t seem to work.
When I replace
(:refer examples.import-static :refer :all)
with...
New
The output listed does not match the output from the program listed above. It should have preserved the right-justification of the data.
New
In chapter 2 page 48 identities are introduced and the following code is listed:
```
identities do
identity :unique_album_names_per_ar...
New
Thanks for letting me review this book. I’ve noticed the following errata while reading the book (PDF version B2.0):
Page 35
2nd bu...
New
I have created the example temperature polling application on a Raspberry Pico W and it is working, however, the reported temperature swi...
New
In the example on page 83, the variable index_name has not been initialized when it is referenced in the if statement on line 7.
New
This is probably going to come up if it hasn’t already, but if you try to use Rust 2024 edition with the Advanced Hands-on Rust code, you...
New
It would be excellent to have a little more explanation about why the code returns false for the last example in the section: docs&....
New
Title: eloquent-ruby-second-edition_B1.0.pdf
Example: page 19
/All of the In the Wild examples have been updated to reflect the code th...
New
In the listing of the `rag()` function on page 116, no value is returned. But when that method is invoked in the code listing on page 117...
New
At the end of the regex sets section, ‘superheros’ should be spelled ‘superheroes’
New
This Year's Trending
When you generate a new Rails, app, there is no version constraint on tailwindcss-rails in the Gemfile. The gem released version 4.0.x on...
New
Title: Agile Web Development with Rails 8 (page 9)
Suggestion: Add watchman to the list of packages to install
In Chapter 6 page 71 whe...
New
Hello, I was struggling a bit with completing chapter 11, iteration F4.
While the changes done in the “admin” (maintenance?) panel to st...
New
Thank you for writing such a helpful book! I’ve been enjoying learning about Hotwire Native and Rails.
I have a question regarding hidin...
New
I created my own tunez app from scratch using mix new tunes_hg
I successfully followed the book creating the ash_resource ‘artist’.
I c...
New
On page 93, reference is made to the file lorem.jpg, which should be located in the test/fixtures/files folder; however, the file is not ...
New
@joemasilotti
In Chapter 1, Initiate the Visit Section, it says:
let baseURL = URL(string: “http://localhost:3000”)!
This doesn’t work ...
New
The first time the navigatorHostId is set it uses the value R.id.main_nav_host supposedly added to to activity_main.xml in previous step...
New
In the “Defining an update action” section
artist = Tunez.Music.get_artist_by_id!("an-artist-id")
should be:
{:ok, artist} = Tunez...
New
The text "“ What we do have is that suspension-point icon next to awaitResponse,”
presumes we didn’t have those icons in the execute ver...
New
The regex on page 48 is hard to read:
~r/(^https:\/\/|\/images\/).+(\.png|\.jpg)$/
It can be improved by changing the delimiters which ...
New
Page 100
Add the following snippet to your index.html.eex template:
index.html.heex
Page 105
Our <.header> function invocati...
New
Context
Hardware & OS:
OS: macOS Tahoe 26.0 arm64
Host: MacBook Pro
Observation
One of the code snippets as seen in epub is this...
New
In the diagram, the transition images across the top and down the right are: heads then heads, but the text says “accept state … if we fi...
New
Thanks for the excellent book @elliefairholm and @Gilacost , really well paced and clearly written.
One small suggestion: I think it wou...
New
Trending Last Three Years
I just bought this book to learn about Android development, and I’m already running into a major issue in Ch. 1, p. 20: “Update activity...
New
@mfazio23
Android Studio will not accept anything I do when trying to use the Transformations class, as described on pp. 140-141. Googl...
New
@mfazio23
I’ve applied the changes from Chapter 5 of the book and everything builds correctly and runs. But, when I try to start a game,...
New
Getting an error when installing the dependencies at the start of this chapter:
could not compile dependency :exla, "mix compile" failed...
New
Hello @herbert ! Trying to get the very first “Hello, Bracket Terminal!" example to run (p. 53). I develop on an Amazon EC2 instance runn...
New
root_layout: {PentoWeb.LayoutView, :root},
This results in the following following error:
no “root” html template defined for PentoWeb...
New
Hello faithful readers! If you have tried to follow along in the book, you are asked to start up the dev environment via dx/build and ar...
New
From page 13:
On Python 3.7, you can install the libraries with pip by running these commands inside a Python venv using Visual Studio ...
New
I’ve got to the end of Ch. 11, and the app runs, with all tabs displaying what they should – at first. After switching around between St...
New
Docker-Machine became part of the Docker Toolbox, which was deprecated in 2020, long after Docker Desktop supported Docker Engine nativel...
New
Is there any plan for volume 2? :slight_smile:
New
@mfazio23
I had the project running as of p. 249, but by the end of Ch. 10 (p. 258), something new has made the program crash when it tr...
New
@rubys
Title: Name of book: text: Agile Web Development Rails6, p. 183, Iteration G1: Capturing an Order.
I started working on a web de...
New
Disclaimer: I hope all of this is accurate, and not the result of some stupid typo I failed to notice. Anyways…
This post comprises 2 is...
New
the statement “The quantum state of a qubit is obtained by reading across a row … |0011>” seems quite problematic to me.
First, the q...
New
Trending Over 3 Years
Hi, I have just acquired Michael Fazio’s “Kotlin and Android Development” to learn about game programming for Android. I have a game in p...
New
When trying to generate the protobuf .go file, I receive this error:
Unknown flag: --go_opt
libprotoc 3.12.3
MacOS 11.3.1
Googling ...
New
I ran this command after installing the sample application:
$ cards add do something --owner Brian
And got a file not found error:
Fil...
New
When I run the coverage example to report on missing lines, I get:
pytest --cov=cards --report=term-missing ch7
ERROR: usage: pytest [op...
New
I found an issue in Chapter 7 regarding android:backgroundTint vs app:backgroundTint.
How to replicate:
load chapter-7 from zipfile i...
New
your book suggests to use Image.toByteData() to convert image to bytes, however I get the following error: "the getter ‘toByteData’ isn’t...
New
@mfazio23
I’m following the indications of the book and arriver ad chapter 10, but the app cannot be compiled due to an error in the Bas...
New
Running the examples in chapter 5 c under pytest 5.4.1 causes an AttributeError: ‘module’ object has no attribute ‘config’.
In particula...
New
I think I might have found a problem involving SwitchCompat, thumbTint, and trackTint.
As entered, the SwitchCompat changes color to hol...
New
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_...
New
I am working on the “Your Turn” for chapter one and building out the restart button talked about on page 27. It recommends looking into ...
New
Some minor things in the paper edition that says “3 2020” on the title page verso, not mentioned in the book’s errata online:
p. 186 But...
New
page 20: … protoc command…
I had to additionally run the following go get commands in order to be able to compile protobuf code using go...
New
The following is cross-posted from the original Ray Tracer Challenge forum, from a post by garfieldnate. I’m cross-posting it so that the...
New
The allprojects block listed on page 245 produces the following error when syncing gradle:
“org.gradle.api.GradleScriptException: A prob...
New
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