
seanjseymour
Hands-on Rust: Beta 2 - Trimming Input (page 25)
Hi, on page 25 in the Trimming Input section, after this text:
“You can see this by replacing your last println! call with the following:”
println!("{:?}", name);
I believe needs to be fixed to use the function like so:
println!("{:?}", what_is_your_name());
Marked As Solved

herbert
Author of Hands-on Rust
Thank you! I’ve put this into the book’s issue tracker, it’ll be resolved for the next beta. Keeping the backing code (which auto-builds before each time I commit changes) synced with the book (which doesn’t) can be tricky sometimes. Thanks again - I’ll get that resolved.
2
Also Liked

seanjseymour
I see how this errata happened now, the book has the main function on p. 24 as:
fn main() {
println!("Hello, what's your name?");
println!("Hello, {}", what_is_your_name())
}
But the online code example throws the function output into a variable:
fn main() {
println!("Hello, what's your name?");
let name = what_is_your_name();
println!("{:?}", name);
}
1
Popular Pragmatic Bookshelf topics

Hi Brian,
Looks like the api for tinydb has changed a little. Noticed while working on chapter 7 that the .purge() call to the db throws...
New

Title: Hands-On Rust (Chap 8 (Adding a Heads Up Display)
It looks like
.with_simple_console_no_bg(SCREEN_WIDTH*2, SCREEN_HEIGHT*2...
New

I thought that there might be interest in using the book with Rails 6.1 and Ruby 2.7.2. I’ll note what I needed to do differently here.
...
New

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

I think I might have found a problem involving SwitchCompat, thumbTint, and trackTint.
As entered, the SwitchCompat changes color to hol...
New

When running tox for the first time, I got the following error:
ERROR: InterpreterNotFound: python3.10
I realised that I was running ...
New

I’m a newbie to Rails 7 and have hit an issue with the bin/Dev script mentioned on pages 112-113.
Iteration A1 - Seeing the list of prod...
New

Hi, I’ve got a question about the implementation of PubSub when using a Phoenix.Socket.Transport behaviour rather than channels.
Before ...
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

@mfazio23
Android Studio will not accept anything I do when trying to use the Transformations class, as described on pp. 140-141. Googl...
New
Other popular topics

What chair do you have while working… and why?
Is there a ‘best’ type of chair or working position for developers?
New

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

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
New

Rails 7 completely redefines what it means to produce fantastic user experiences and provides a way to achieve all the benefits of single...
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:
VM Brasseur
@vmbrasseur
We have a treat for you today! We turn the spotlight onto Open Source as we sit down with V...
New

Author Spotlight:
Peter Ullrich
@PJUllrich
Data is at the core of every business, but it is useless if nobody can access and analyze ...
New

This is cool!
DEEPSEEK-V3 ON M4 MAC: BLAZING FAST INFERENCE ON APPLE SILICON
We just witnessed something incredible: the largest open-s...
New

This is a very quick guide, you just need to:
Download LM Studio: https://lmstudio.ai/
Click on search
Type DeepSeek, then select the o...
New
Categories:
Sub Categories:
Popular Portals
- /elixir
- /rust
- /wasm
- /ruby
- /erlang
- /phoenix
- /keyboards
- /rails
- /js
- /python
- /security
- /go
- /swift
- /vim
- /clojure
- /java
- /haskell
- /emacs
- /svelte
- /onivim
- /typescript
- /crystal
- /c-plus-plus
- /tailwind
- /kotlin
- /gleam
- /react
- /flutter
- /elm
- /ocaml
- /ash
- /vscode
- /opensuse
- /centos
- /php
- /deepseek
- /html
- /zig
- /scala
- /debian
- /nixos
- /lisp
- /sublime-text
- /textmate
- /agda
- /react-native
- /kubuntu
- /arch-linux
- /ubuntu
- /revery
- /spring
- /django
- /manjaro
- /diversity
- /lua
- /nodejs
- /julia
- /slackware
- /c
- /markdown