Programming Ruby 3.2 (5th Edition) (Pragmatic Bookshelf)
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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
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
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...
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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 606, first paragraph, last line
so inherits all the functionality describe here.
I think it should be described.
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@noelrappin
page 593 bottom, in the line before ref_meta_ruby/delegate_class.rb
pass the object to be delegated to the parameter clas...
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@noelrappin
page 580, in Pathname, line 3
and so on). Second (and somewhat confusingly), it acts as a facade for some methods in
...
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@noelrappin
page 507, in BigDecimal, fourth paragraph from bottom, first line :
To use BigDecimal, you must require bigdecimal in your ...
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@noelrappin
page 549, in Lazy Enumerators, third line : pass or are passed ?
of the method chain, it changes the behavior of the entire...
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@noelrappin
page 581, in StringIO, second paragraph, last line : strange is that
[or] the default external encoding is that no string i...
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@noelrappin
page 502, in Math, last bullet, line 4 : atanh should be Math.atanh
hyperbolic functions Math.cosh, Math.sinh, Math.tanh, M...
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@noelrappin
page 551, paragraph 5 : I have found the explanation of dig
and passing the remainder of the arguments to that result
a ...
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@noelrappin
page 553, in Converting Hashes, lines 2-3 :
… If you want a single-dimensional array,
you can use flatten, which is hash....
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@noelrappin
page 504, in Integer Class, third paragraph, third line :
new number with a 1 in the binary operation of either operand.
...
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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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“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
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 323, paragraph 4, line 2 : $rdoc ?
will likely use approximately never, see $rdoc --help for a full rundown.
The do...
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@noelrappin
page 351, in Getting Started with Rubocop, executing $ rubocop
I have re-downloaded the code from the book, cd to /ruby_sty...
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@noelrappin
page 355, paragraph 3, line 2 :
figuration or by running rubocop -a to auto correct (which will fix all but the first issue...
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@noelrappin
page 468, reference/kwargs_2.rb produces no output :
% ruby -w reference/kwargs_2.rb
%
Adding puts to the last line shows...
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@noelrappin
First line while (line = gets) would be better Ruby as
while line = gets.
Even Scala 3 has been Rubyfied and suppressed th...
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@noelrappin
In Programming Ruby 1.9, 2010 edition, this hash in page 21 was nicely aligned ;
inst_section = {
'cello' => 'strin...
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@noelrappin
Already in the previous edition !
page 381, second code, second of the four puts : animal is a dog, not a cat
puts "It def...
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@noelrappin
page 444-5 : It would be nice if the layout of page 445 could be changed so that end}, which appears after Table 11, would a...
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@noelrappin
page 455, compared with The Ruby Programming Language by David Flanagan & Yukihiro Matsumoto, O’Reilly 2008, there is so...
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@noelrappin
page 269, paragraph after the code, first bullet
• You won’t be able to run this without also updating the .gemspec file as...
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@noelrappin
page 204, paragraph 7 (counting code and output for one), line 2 :
Subsequently, the last source.take returns nil and ends ...
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@noelrappin
page 203, first paragraph, line 2-3 :
ractor. The entrance lines are infinite, and the sending call is guaranteed not to b...
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