
s2k
Author of Fast Feedback Using Ruby
Programming Ruby 3.2 (5th Edition): p. 27:’match?’ is not synonymous to ‘=~‘
Hi @noelrappin,
first of all: It’s SO good to read an updated version of this book! Thanks for all the effort!
The text says:
Both strings and regular expressions have a match? method which is synonymous to the =~
operator
While the two are very similar, there ist a difference in the return values (at least): ‚=~’ returns an integer or nil, ‘match?’ returns true or false.
See Class: Regexp (Ruby 3.1.2)
Cheers
Stephan
First Post!

noelrappin
Author of Modern Front-End Development for Rails
Thanks! We do mention the return value difference a little later in the chapter, but you are right that the text could be more accurate there.
Thanks,
Noel
Popular Pragmatic Bookshelf topics

Running the examples in chapter 5 c under pytest 5.4.1 causes an AttributeError: ‘module’ object has no attribute ‘config’.
In particula...
New

Title: Hands-on Rust: question about get_component (page 295)
(feel free to respond. “You dug you’re own hole… good luck”)
I have somet...
New

First, the code resources:
Page 237: rumbl_umbrella/apps/rumbl/mix.exs
Note: That this file is missing.
Page 238: rumbl_umbrella/app...
New

Hi @venkats,
It has been mentioned in the description of ‘Supervisory Job’ title that 2 things as mentioned below result in the same eff...
New

A Common-Sense Guide to Data Structures and Algorithms, Second Edition by Jay Wengrow @jaywengrow
Hi,
I have the paperback version of t...
New

This is as much a suggestion as a question, as a note for others.
Locally the SGP30 wasn’t available, so I ordered a SGP40. On page 53, ...
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

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

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

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
Other popular topics

Thanks to @foxtrottwist’s and @Tomas’s posts in this thread: Poll: Which code editor do you use? I bought Onivim! :nerd_face:
https://on...
New

If you are experiencing Rails console using 100% CPU on your dev machine, then updating your development and test gems might fix the issu...
New

Continuing the discussion from Thinking about learning Crystal, let’s discuss - I was wondering which languages don’t GC - maybe we can c...
New

Hello everyone! This thread is to tell you about what authors from The Pragmatic Bookshelf are writing on Medium.
New

Hi folks,
I don’t know if I saw this here but, here’s a new programming language, called Roc
Reminds me a bit of Elm and thus Haskell. ...
New

If you get Can't find emacs in your PATH when trying to install Doom Emacs on your Mac you… just… need to install Emacs first! :lol:
bre...
New

Author Spotlight
Jamis Buck
@jamis
This month, we have the pleasure of spotlighting author Jamis Buck, who has written Mazes for Prog...
New
New

A Brief Review of the Minisforum V3 AMD Tablet.
Update: I have created an awesome-minisforum-v3 GitHub repository to list information fo...
New

I’m able to do the “artistic” part of game-development; character designing/modeling, music, environment modeling, etc.
However, I don’t...
New
Categories:
Sub Categories:
Popular Portals
- /elixir
- /rust
- /ruby
- /wasm
- /erlang
- /phoenix
- /keyboards
- /rails
- /js
- /python
- /security
- /go
- /swift
- /vim
- /clojure
- /emacs
- /haskell
- /java
- /onivim
- /svelte
- /typescript
- /crystal
- /kotlin
- /c-plus-plus
- /tailwind
- /gleam
- /ocaml
- /react
- /elm
- /flutter
- /vscode
- /ash
- /opensuse
- /centos
- /php
- /deepseek
- /html
- /zig
- /scala
- /textmate
- /sublime-text
- /nixos
- /debian
- /lisp
- /react-native
- /agda
- /kubuntu
- /arch-linux
- /ubuntu
- /revery
- /django
- /spring
- /manjaro
- /nodejs
- /diversity
- /lua
- /c
- /slackware
- /julia
- /neovim