write hello world in rust:
fn main() {
println!("hello rust!");
}
fn → declare a function
! → macro
Cargo - rust’s build system
cargo new → generate a new cargo project
cargo new --vsc=git → generate cargo project with git
cargo init → initialise a cargo project
cargo build → builds a project
cargo run → run the binaries generated after build
cargo check → check your code, make sure it compiles without actually generating an executable
Variables
By default, variables in rust are immutable and strongly typed, but you can make them mutable using mut keyword.
let x = 10; // immutable
let mut x = 10; // mutable