Rust

Unfortunately am into this rust thing now.. there is no going back, lets learn this mf.

Intro | notes to me

Rust is a compiled programming language like go | C | C++, to add more in rust memory management is manual unlike go | java | js etcc, where you will get automatic GC on ur runtime. In Rust there is a in house tool called cargo, which is the dependency manager, similar to npm in js, cargo new project creates a new project with directories src/main.rs, cargo.toml files, cargo.toml files contains the project information like project_name, dependencies needed etc.

• cargo build - builds your program and puts the executable under target/debuge/*.
• cargo check - builds your program and checks if there are any issues, but it won't produce any binary/executable so its fast compared to build.
• cargo run - builds and produce an executable and also runs the executable for us, similar to go run main.go

fn hello_world() {
    println!("Hello World!");
}

fn main() {
    hello_world();
}

Above is the basic Hello world program in rust, as you can see in rust function is declared using fn keyword, one interesting thing i found is instead of normal println here we are calling println!, the ! means we are calling a macro(kinda c macro) not a normal function.

Crate

Crates in rust are kinda of dependencies/npm packages in binary or library, that we can use in our application, these can be downloaded using cargo(package manager).