Programming Ruby 3.2 (5th Edition) (Pragmatic Bookshelf)
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There is an example of using Threads on page 188:
require "net/http"
pages = %w[www.rubycentral.org www.pragprog.com www.google.com]
t...
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@noelrappin
On page 376 in the second paragraph (the one below the image):
wrong:
… then looks in its singleton class class for …
cor...
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@noelrappin
On page 376, first paragraph:
wrong:
… , that’s the first place Ruby looks for object lookup.
correct:
… , that’s the fi...
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@noelrappin
On page 375 second to last paragraph:
wrong:
When you define a singleton class, Ruby creates …
correct:
When you define ...
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From Chapter 5: Splat! Expanding Collections in Method Calls
We’ve seen that if you prefix the name of a method argument with an asteri...
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@noelrappin
In the Where Ruby Finds Its Libraries section on page 244 there’s a discussion about the standard directories used for libra...
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Title: Name of book: Programming Ruby 3.3 (page 227)
@noelrappin
On page 227 there’s a section entitled RSpec and Mocks.
Immediately f...
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@noelrappin
On page 122, in the discussion of “Strings and Encodings”, it is stated: “A Unicode character is two bytes long, which makes...
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A Ruby-Centric Chat with Noel Rappin @noelrappin
Once you start noodling around with Ruby you quickly figure out, as Noel Rappi...
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Title: Programming Ruby 3.2 (5th edition), p 23 (in Beta 6) –
After showing declaration of hashed “instrument_section” values, the sampl...
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In this class get_tax method return string is missing interpolation for the @name instance variable.
class TaxCalculator
def initializ...
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@noelrappin
I think this thing &: would be a great addition to the list of notation and typography that is called by a name that is ...
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@noelrappin
The functionality as described (Convert the argument to the stated type.) for methods like Integer() is very incomplete. It ...
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Programming Ruby 3.2 (5th Edition): typo (page 491)
Currently:
So now when Scheudler[RedisJob] is declared, RBS ensures that RedisJob i...
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Programming Ruby 3.2 (5th Edition): Typo (page 475)
Should be “and” not “an”
Current:
"You can also alias inside a module or class wit...
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Please note that Ruby’s === is different that JavaScript’s.
Should read:
Please note that Ruby’s === is different than JavaScript’s.
o...
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It’s a pity there are so few reviewers. It there are remaining typos (sure there are), I’ll feel guilty :scream:.
The good news is that ...
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@noelrappin
page 625, last bullet, first line : parameter → argument (or arguments ?)
The third line uses arguments, so I suppose you a...
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@noelrappin
page 615, second paragraph, third line : modjule instead of module
classes or modules that match (or are a subclass of) mod...
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@noelrappin
page 614, in Query, paragraph 4 : a → an
There are several slightly different mechanisms for a boolean test of whether a ob...
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@noelrappin
page 612, two periods on the last line :
by subclasses to provide matching behavior in case statements. .
...
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@noelrappin
page 611, second paragraph after the output of ripper_1.rb,
As a example
should be
As an example.
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@noelrappin
page 610, in Event Hooks
Module#method_removed and Module#method_undefined both use the same
with the name of the new met...
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@noelrappin
page 608, in Modifying Modules, paragraph 4, line 7 : r instead of or
receiving module r one of its ancestor modules, and M...
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@noelrappin
page 606, first paragraph, last line
so inherits all the functionality describe here.
I think it should be described.
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@noelrappin
page 605, paragraph after compose_methods.rb code, first line : twice of
The number of arguments that a method takes is cal...
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@noelrappin
page 603, second to last paragraph, first line : program_name instead of progname
You add new entries to the log with Logge...
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@noelrappin
page 602, second paragraph, second line : comma instead of period
environment variables in the subshell. The keys must be s...
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@noelrappin
page 601, in Executing System Commands, second paragraph, lines 2-3, Kernel#\ instead of Kernel#` + $?‘ instead of $?
145 i...
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@noelrappin
page 600, last paragraph, first line : superfluous that ?
Kernel#__dir__ returns the path of the directory of the file that...
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Programming Ruby is the most complete book on Ruby, covering both the language itself and the standard library as well as commonly used t...
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There is an example of using Threads on page 188:
require "net/http"
pages = %w[www.rubycentral.org www.pragprog.com www.google.com]
t...
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Most Active Last Three Years
A Ruby-Centric Chat with Noel Rappin @noelrappin
Once you start noodling around with Ruby you quickly figure out, as Noel Rappi...
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“Alternately you can list one or more specific paths (.rb or .rbi files after the tc) to limit checking,”
It might be worth mentioning t...
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Hi @noelrappin,
first of all: It’s SO good to read an updated version of this book! Thanks for all the effort! :pray:
The text says:
...
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@noelrappin
Programming Ruby 3.2 (5th Edition) (PragProg), Beta release, p 295, under the subheading “Querying the System”, 2nd paragrap...
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@noelrappin
+++++ page 49 Reopening Classes
While ...
the most unique features of Ruby’s class structure: The ability to ...
...
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@noelrappin On page 68 of the PDF in the paragraph preceding the fib_up_to method definition, the word “we” is duplicated.
The text read...
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@noelrappin
page 269, running rspec
These tests pass (after you update the .gemspec file):
$ rspec spec/aaagmnr/options_spec.rb
It ...
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@noelrappin
page 274, in Packaging Your RubyGem, paragraph 2, command $ gem build
Missing README.md in code/gems/aaagmnr :
% gem build...
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“One thing you might find unusual is that in the second clause Ruby uses the keyword eslif—one word, missing an “e”—to indicate “else if”...
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@noelrappin
On page xii of the Preface, the paragraph beginning with, “Here, you can see…,” has an error in the last sentence. Following...
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@noelrappin
I’m not Anglophone, so I’m not sure. Third paragraph from end of page 21, second line : Idiomatic Ruby tends to
lean in to ...
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@noelrappin
“The order of the keys in the hash is stable and will alway match the order in which the keys were added to the hash.”
shou...
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@noelrappin
I think this thing &: would be a great addition to the list of notation and typography that is called by a name that is ...
New
@noelrappin On page 89 of the PDF in the last sentence of the last paragraph of the page and just before the example that begins “class C...
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First of all, thank you so much @noelrappin for writing this book, I am just starting with Ruby and this book is very helpful.
I just wa...
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Most Active Over Three Years
@noelrappin
page 335, second to last line : colon instead of period at end of sentence :
call, either of those can be arguments to run:...
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@noelrappin in the first sentence of the second paragraph of page 14 the text includes a “for” that shouldn’t be there:
“The official Ru...
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@noelrappin
Many places have require “name”, other require name. If you want to have the same style everywhere, the following pages are ...
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@noelrappin
page 339, third paragraph from bottom, line 3 : twice the
pulling in both Sinatra itself, and the the Thin web server, when...
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@noelrappin
Already in the previous edition !
page 373, third paragraph, first line : built in to or built into ?
But when you metapr...
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The beginning of the 4th paragraph from the bottom:
“BeBy default …”
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@noelrappin
Page 187, last paragraph, line 7 :
(again, with the exception of the Ractor library). Ruby installations that do want to t...
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@noelrappin
page 513, third paragraph, second line : might not have a later
if that might cause performance issues later—a short script...
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@noelrappin
page 472, paragraph after Safe Navigation, line 2 : twice is
method is is not called and the entire expression returns nil....
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@noelrappin
page 525, last example :
… and "IBM".tr("B-Z", "A-Y") => "HAL"
… for those who have seen the film 2001: A Space Odyssey...
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@noelrappin
page 625, last bullet, first line : parameter → argument (or arguments ?)
The third line uses arguments, so I suppose you a...
New
@noelrappin
page 565, third paragraph : strange sentence
None of these methods are dependent on the file name being managed actually e...
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@noelrappin
In the third sentence of the first full paragraph on page 19, the word “response” is used when “responds” should be used ins...
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@noelrappin
p. 356, example method in section “Ruby Style in the Large”, the definition for the first example of method “send_promotion_...
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@noelrappin
Duplicate word: “We don’t need to declare the symbols or assign assign them a value…”
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Pragmatic Bookshelf
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