jon

jon

The Pragmatic Programmer, 20th Anniversary Edition errata

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 Erlang (and it’s progeny … should be: its

p. 205 chart O(n ln n) should be: O(n lg n)

p. 221 Ad Hoc Testing “run poke at our code manually”: I’m not sure exactly what is meant here. Maybe leave out “run”: poke at our code manually

p. 222 “Ignore a spew … makes it easier to ignore all the tests”: not sure what this means. “Ignore a spew”?

p. 226 “raise Exception”: needs to be indented two more spaces (significant in Python)

Most Liked

Juanadelacuesta

Juanadelacuesta

Hello!!!

I also notice on the possible answer for the exercise 8 (page 297, solution in ruby of the time parser) the regular expression for the tenths of minutes includes 6, so hours like 6:66 pm are valid.

Sereger

Sereger

p. 120 - in the second code snippet there seems to be one missing statement:
write_customer between the following two lines:

@balance = @balance.add(transaction_amount, 2)        #    |
# --> here, I think, write_customer call is missing
file.close                                            #  <--
zois-tasoulas

zois-tasoulas

Hi,
I also noticed the following (book with ISBN-13: 978-0-13-595705-9):

  • page 140, in the code for strings_fsm.rb, for the state in_string, I think the matching character should be a single backslash instead of two.
  • page 160, “When the top level calls my_car.move_at(30) , the method …”, the object name (my_car) does not align with the top-level code example (my_ride). I think one of the two should be changed so they align.
  • page 196, “But it applies to the bigger picture are well”, I think instead of “are” there should be “as”.

Where Next?

Popular Pragmatic Bookshelf topics Top

jeffmcompsci
Title: Design and Build Great Web APIs - typo “https://company-atk.herokuapp.com/2258ie4t68jv” (page 19, third bullet in URL list) Typo:...
New
mikecargal
Title: Hands-On Rust (Chapter 11: prefab) Just played a couple of amulet-less games. With a bit of debugging, I believe that your can_p...
New
joepstender
The generated iex result below should list products instead of product for the metadata. (page 67) iex&gt; product = %Product{} %Pento....
New
Chrichton
Dear Sophie. I tried to do the “Authorization” exercise and have two questions: When trying to plug in an email-service, I found the ...
New
curtosis
Running mix deps.get in the sensor_hub directory fails with the following error: ** (Mix) No SSH public keys found in ~/.ssh. An ssh aut...
New
dsmith42
Hey there, I’m enjoying this book and have learned a few things alredayd. However, in Chapter 4 I believe we are meant to see the “&gt;...
New
adamwoolhether
Is there any place where we can discuss the solutions to some of the exercises? I can figure most of them out, but am having trouble with...
New
jwandekoken
Book: Programming Phoenix LiveView, page 142 (157/378), file lib/pento_web/live/product_live/form_component.ex, in the function below: d...
New
EdBorn
Title: Agile Web Development with Rails 7: (page 70) I am running windows 11 pro with rails 7.0.3 and ruby 3.1.2p20 (2022-04-12 revision...
New
New

Other popular topics Top

malloryerik
Any thoughts on Svelte? Svelte is a radical new approach to building user interfaces. Whereas traditional frameworks like React and Vue...
New
brentjanderson
Bought the Moonlander mechanical keyboard. Cherry Brown MX switches. Arms and wrists have been hurting enough that it’s time I did someth...
New
DevotionGeo
I know that -t flag is used along with -i flag for getting an interactive shell. But I cannot digest what the man page for docker run com...
New
AstonJ
poll poll Be sure to check out @Dusty’s article posted here: An Introduction to Alternative Keyboard Layouts It’s one of the best write-...
New
AstonJ
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...
New
dimitarvp
Small essay with thoughts on macOS vs. Linux: I know @Exadra37 is just waiting around the corner to scream at me “I TOLD YOU SO!!!” but I...
New
AstonJ
Continuing the discussion from Thinking about learning Crystal, let’s discuss - I was wondering which languages don’t GC - maybe we can c...
New
AstonJ
We’ve talked about his book briefly here but it is quickly becoming obsolete - so he’s decided to create a series of 7 podcasts, the firs...
New
First poster: bot
zig/http.zig at 7cf2cbb33ef34c1d211135f56d30fe23b6cacd42 · ziglang/zig. General-purpose programming language and toolchain for maintaini...
New
AnfaengerAlex
Hello, I’m a beginner in Android development and I’m facing an issue with my project setup. In my build.gradle.kts file, I have the foll...
New

Sub Categories: