Closures are anonymous functions in Rust that can capture and use variables from their defining scope.
Closures in Rust are anonymous functions that can capture variables from their surrounding environment. They are defined using the |args| body syntax and can be assigned to variables or passed as arguments to other functions.
fn main() {
let x = 5;
let add_x = |y| x + y;
println!("{}", add_x(10)); // Prints 15
}
A closure is a small, unnamed function that can remember and use variables from the place where it was created. Think of it like a calculator that you hand someone, but it already has a specific number written on it that it will always add to whatever you give it. You use them when you need to pass a small piece of logic to another function without defining a full, named function first.