daviddoji/100-exercises-to-learn-rust
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Formatter (#51)

Browse Source 
Enforce consistent formatting use `dprint`
This commit is contained in:
Luca Palmieri
2024-05-24 17:00:03 +02:00
committed by GitHub
parent 537118574b
commit 99591a715e
157 changed files with 1057 additions and 1044 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
book/src/01_intro/01_syntax.md
View File

@@ -2,16 +2,16 @@
<div class="warning">
Don't jump ahead!
Complete the exercise for the previous section before you start this one.
It's located in `exercises/01_intro/00_welcome`, in the [course GitHub's repository](https://github.com/mainmatter/100-exercises-to-learn-rust).
Don't jump ahead!\
Complete the exercise for the previous section before you start this one.\
It's located in `exercises/01_intro/00_welcome`, in the [course GitHub's repository](https://github.com/mainmatter/100-exercises-to-learn-rust).\
Use [`wr`](00_welcome.md#wr-the-workshop-runner) to start the course and verify your solutions.
</div>
The previous task doesn't even qualify as an exercise, but it already exposed you to quite a bit of Rust **syntax**.
We won't cover every single detail of Rust's syntax used in the previous exercise.
Instead, we'll cover _just enough_ to keep going without getting stuck in the details.
Instead, we'll cover _just enough_ to keep going without getting stuck in the details.\
One step at a time!
## Comments
@@ -88,7 +88,7 @@ It is considered idiomatic to omit the `return` keyword when possible.
### Input parameters
Input parameters are declared inside the parentheses `()` that follow the function's name.
Input parameters are declared inside the parentheses `()` that follow the function's name.\
Each parameter is declared with its name, followed by a colon `:`, followed by its type.
For example, the `greet` function below takes a `name` parameter of type `&str` (a "string slice"):
@@ -105,10 +105,10 @@ If there are multiple input parameters, they must be separated with commas.
### Type annotations
Since we've been mentioned "types" a few times, let's state it clearly: Rust is a **statically typed language**.
Since we've been mentioned "types" a few times, let's state it clearly: Rust is a **statically typed language**.\
Every single value in Rust has a type and that type must be known to the compiler at compile-time.
Types are a form of **static analysis**.
Types are a form of **static analysis**.\
You can think of a type as a **tag** that the compiler attaches to every value in your program. Depending on the
tag, the compiler can enforce different rules—e.g. you can't add a string to a number, but you can add two numbers
together.