rustHow to borrow closure in Rust

Closure is a feature of Rust that allows a function to capture and use variables from its environment. It is a powerful tool for writing concise and expressive code.

Example code

fn main() {
    let x = 5;
    let closure = || x * x;
    println!("{}", closure());
}

Output example

25

Code explanation

1. let x = 5; - declares a variable x with value 5
2. let closure = || x * x; - declares a closure closure which captures the variable x from its environment and multiplies it by itself
3. println!("{}", closure()); - prints the result of calling the closure closure

Helpful links

• Rust Closures
• Closure Examples

Edit this code on GitHub