
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

Working through the steps (checking that the Info,plist matches exactly), run the demo game and what appears is grey but does not fill th...
New

When I try the command to create a pair of migration files I get an error.
user=> (create-migration "guestbook")
Execution error (Ill...
New

Hi Jamis,
I think there’s an issue with a test on chapter 6. I own the ebook, version P1.0 Feb. 2019.
This test doesn’t pass for me:
...
New

The generated iex result below should list products instead of product for the metadata. (page 67)
iex> product = %Product{}
%Pento....
New

“The ProductLive.Index template calls a helper function, live_component/3, that in turn calls on the modal component. ”
Excerpt From: Br...
New

The markup used to display the uploaded image results in a Phoenix.LiveView.HTMLTokenizer.ParseError error.
lib/pento_web/live/product_l...
New

Skimming ahead, much of the following is explained in Chapter 3, but new readers (like me!) will hit a roadblock in Chapter 2 with their ...
New

@mfazio23
I’ve applied the changes from Chapter 5 of the book and everything builds correctly and runs. But, when I try to start a game,...
New

Getting an error when installing the dependencies at the start of this chapter:
could not compile dependency :exla, "mix compile" failed...
New

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

Which, if any, games do you play? On what platform?
I just bought (and completed) Minecraft Dungeons for my Nintendo Switch. Other than ...
New

Design and develop sophisticated 2D games that are as much fun to make as they are to play. From particle effects and pathfinding to soci...
New

Not sure if following fits exactly this thread, or if we should have a hobby thread…
For many years I’m designing and building model air...
New

Think Again 50% Off Sale »
The theme of this sale is new perspectives on familiar topics.
Enter coupon code ThinkAgain2021 at checkout t...
New

Saw this on TikTok of all places! :lol:
Anyone heard of them before?
Lite:
New
New

Author Spotlight:
Karl Stolley
@karlstolley
Logic! Rhetoric! Prag! Wow, what a combination. In this spotlight, we sit down with Karl ...
New

Large Language Models like ChatGPT say The Darnedest Things.
The Errors They MakeWhy We Need to Document Them, and What We Have Decided ...
New

Author Spotlight:
Sophie DeBenedetto
@SophieDeBenedetto
The days of the traditional request-response web application are long gone, b...
New

Author Spotlight:
Bruce Tate
@redrapids
Programming languages always emerge out of need, and if that’s not always true, they’re defin...
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
- /sublime-text
- /textmate
- /lisp
- /debian
- /nixos
- /react-native
- /agda
- /kubuntu
- /arch-linux
- /ubuntu
- /django
- /revery
- /manjaro
- /spring
- /nodejs
- /diversity
- /lua
- /julia
- /slackware
- /c
- /neovim