rust

⚙️ Rust lang Study Repository.

00 - Basic

A little bit of the basics.!

What have learned?

Use underscore _ for compound filenames hello_world.rs.
I can compile the file simply using rustc file.rs.
The main function is always the first code executed.
Macros ! (Not yet understood).
Rust uses double quotes "...".

01 - Cargo

Cargo!

What have learned?

I learned that the cargo is a dependency compiler and generator.
I can create a new project using cargo new project_name.
A project has a cargo.toml which is similar to a package.json in node.
I can use cargo build to compile the project.
Cargo generates a cargo.lock for dependency version control.
I can build and run at the same time using cargo run. If there is no change in the code, it just executes the already generated binary, otherwise it compiles and executes.
I can use cargo check as a dry-run, it compiles but does not generate executable.
I can use cargo build --release to generate the final version of the project! this command creates a more optimized executable but takes longer to build!

02 - First program

Creating an interactive program with std library!

What have learned?

I can import libraries using use lib::module or by destructuring use lib::{ module_a, module_b }.
preludio is a set of default items that rust brings by default in every project eg String::new().
The :: (still no definite definition).
I can declare a variable using the let keyword! By default the values are immutable, but I can use let mut to set the value to mutable.
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