jconley88

jconley88

Programming Ruby 3.2 (5th Edition): distinction between parameter and argument (pdf page 96)

From Chapter 5: Splat! Expanding Collections in Method Calls

We’ve seen that if you prefix the name of a method argument with an asterisk, multiple arguments in the call to the method will be passed as an array. Well, the same thing works in reverse.

I was confused by this paragraph. The previous sections were related to method definitions and their parameters. I believe the first instance of “argument” in the excerpt above is supposed to be referring to a method definition “parameter”. These terms are often used interchangeably to refer to both or either. Since there is an attempt to explicitly distinguish between the two in the same sentence, I think it warrants extra precision here.

First Post!

noelrappin

noelrappin

Author of Modern Front-End Development for Rails

I’ll take another look at it, thanks!

Popular Prag Prog 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
Mmm
Hi, build fails on: bracket-lib = “~0.8.1” when running on Mac Mini M1 Rust version 1.5.0: Compiling winit v0.22.2 error[E0308]: mi...
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
adamwoolhether
I’m not quite sure what’s going on here, but I’m unable to have to containers successfully complete the Readiness/Liveness checks. I’m im...
New
digitalbias
Title: Build a Weather Station with Elixir and Nerves: Problem connecting to Postgres with Grafana on (page 64) If you follow the defau...
New
brunogirin
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
Henrai
Hi, I’m working on the Chapter 8 of the book. After I add add the point_offset, I’m still able to see acne: In the image above, I re...
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
SlowburnAZ
Getting an error when installing the dependencies at the start of this chapter: could not compile dependency :exla, "mix compile" failed...
New
dachristenson
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

Other popular topics Top

AstonJ
If it’s a mechanical keyboard, which switches do you have? Would you recommend it? Why? What will your next keyboard be? Pics always w...
New
PragmaticBookshelf
A PragProg Hero’s Journey with Brian P. Hogan @bphogan Have you ever worried that your only legacy will be in the form of legacy...
New
AstonJ
Or looking forward to? :nerd_face:
New
foxtrottwist
Here’s our thread for the Keyboardio Atreus. It is a mechanical keyboard based on and a slight update of the original Atreus (Keyboardio ...
New
PragmaticBookshelf
A Hero’s Journey with Chris Pine @chrispine Chris Pine, author of Learn to Program, Third Edition, discusses his journey to beco...
New
PragmaticBookshelf
Author Spotlight Jamis Buck @jamis This month, we have the pleasure of spotlighting author Jamis Buck, who has written Mazes for Prog...
New
AstonJ
If you want a quick and easy way to block any website on your Mac using Little Snitch simply… File > New Rule: And select Deny, O...
New
husaindevelop
Inside our android webview app, we are trying to paste the copied content from another app eg (notes) using navigator.clipboard.readtext ...
New
PragmaticBookshelf
Author Spotlight: Karl Stolley @karlstolley Logic! Rhetoric! Prag! Wow, what a combination. In this spotlight, we sit down with Karl ...
New
DevotionGeo
I have always used antique keyboards like Cherry MX 1800 or Cherry MX 8100 and almost always have modified the switches in some way, like...
New

Latest in PragProg

View all threads ❯