Intro

Rust is a compiled, statically and strongly typed language. Main features:

Install Rust via rustup, which installs all Rust tools and cargo — Rust's official package manager and orchestration tool.

For a playground during learning, run cargo new playground, edit main.rs and run by cargo run in the project root directory.

Constructs

primitives like i32, f64, bool
arrays are fixed-size collections of values of the same type, [i32; 100]
tuples are collections of values of different types, (i32, i32, &str)
references allow borrowing data, &value
slices offer referencing data sequences with a variable size, [T], str
structs hold related data and define related methods , vector.normalize()
enums define variants of types, Result<T, E> and its Ok(T), Err(E)
generics allow parameters of different types Vec<T>
traits define behavior that types have like ToString
DSTs are types with size not known at compile-time, dyn Trait, [T] , str
lifetimes ensure data validity, 'static,'a
closures are anonymous functions that capture their context, |x| x * 2
attributes are metadata for crates, modules or items, #[attr] , #![crate_attr]
macros for metaprogramming, declarative and procedural, println!("a macro") or #[derive(Debug)]

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