Using Closures in Rust

index.md

Using Closures in Rust

In Rust, inner functions don't automatically have access to outer-scope variables. However, we can create closures using the || {} syntax, which will have access to outer-scope variables.

fn main() {
    let s = "hello";

    let c = || {
        println!("{}", s);
    };
    
    c(); // hello
}