Getting started with Rust language from JavaScript knowledge

I have no experience with Rust language at all. So when I try Rust, maybe something I don't understand at the moment I write this. But I want to give it a try!

Preferences

https://www.rust-lang.org/learn/get-started

🌱 Getting started

After installing Rush language based on your using OS. To verify the successful installation:

rustc --version
# output: rustc 1.67.0 (fc594f156 2023-01-24)
cargo --version
# output: cargo 1.67.0 (8ecd4f20a 2023-01-10)

🍏 Generating a new project

cargo new hello-rust
cd hello-rust
ls
code .

Next, we need to prepare the development environment. For VSCode, I'm using Rust analyzer extension. Other extensions:

even-better-toml - Syntax highlighting and validation for TOML documents (Cargo.toml)

cargo run

Output:

Compiling - hello-rust v0.1.0 (path\to\hello-rust)
Finished - dev [unoptimized + debuginfo] target(s) in 0.71s
Running - target\debug\hello-rust.exe

cargo build

Output:

Finished dev [unoptimized + debuginfo] target(s) in 0.00s

cargo test

Output:

Compiling hello-rust v0.1.0 (path\to\hello-rust)
Finished test [unoptimized + debuginfo] target(s) in 0.32s
Running unittests src\main.rs (target\debug\deps\hello_rust-e2e48f3e969733ad.exe)

🌽 Source code

Cargo.toml:

[package]
name = "hello-rust"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]

Cargo.lock :

# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3

[[package]]
name = "hello-rust"
version = "0.1.0"

.gitignore :

/target

src\main.rs :

fn main() {
    println!("Hello, world!");
}

Let's view deeper in ignored folder:

tree .

My running OS is Windows, so the output is:

PATH\TO\HELLO-RUST
├───src
└───target
    └───debug
        ├───.fingerprint
        │   ├───hello-rust-56ddd413b0849874
        │   ├───hello-rust-5820db0b29385df2
        │   ├───hello-rust-71cc4f1d00a50391
        │   └───hello-rust-e2e48f3e969733ad
        ├───build
        ├───deps
        ├───examples
        └───incremental
            ├───hello_rust-13xvhef7ifhwo
            │   └───s-gi0ldsfjao-e7nyh-1a9bmzoyjcn30
            ├───hello_rust-2mpimy89ql4lt
            │   └───s-gi0ldsfj7a-rw39ce-2a18ew5zcrcaz
            ├───hello_rust-3e9t63lxisjk4
            │   └───s-gi0lv1s4s4-14t6l41-9wekp6y89fms
            └───hello_rust-p3ci3gxgh4dj
                └───s-gi0lvjh8bc-sqyxds-3eqvyiv620wj4

The main folder structure:

├── Cargo.toml
└── src
    └── main.rs

🍍 Compared categories

Here are the JS equivalents:

category	Rust	JS	difference
Package manager	cargo	`npm`, `pnpm`, `yarn`	cargo is also a build tool
Package manager file configuration	Cargo.toml	package.json	cargo is using the TOML format
Package library dependencies	`[dependencies]`	`"dependencies"`	?
Package library dependencies for development	`[dev-dependencies]`, `[build-dependencies]`	`"devDependencies"`	With `npm`, other option is `peerDependencies`, `peerDependenciesMeta`, `bundleDependencies`, `optionalDependencies`
community’s crate registry	crates.io	npmjs.com	?
Add dependencies	`cargo add`	`yarn add`	?
Remove dependencies	`cargo remove`	`yarn remove`	?
run your project with	`cargo run`	`pnpm start`	`cargo` used compiler - `rustc` and execute the compiled file
compiling script	`cargo build`	none	JavaScript is an interpreted language, not a compiled language
coding convention	tab size is 4 spaces	tab size is 2 spaces
function syntax keyword	`fn`	`function`
...	...	...	...

I think I need to rest now, too many things to learn!

Getting started with Rust language from JavaScript knowledge

Table of contents

Preferences

🌱 Getting started

🍏 Generating a new project

🌽 Source code

🍍 Compared categories