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Rust program to create a simple closure

Rust | Iterator and Closure Example: Write a program to create a simple closure.
Submitted by Nidhi, on November 22, 2021

Problem Solution:

In this program, we will create a simple closure function and call closure function to print the "Hello World" message.

Program/Source Code:

The source code to create a simple closure is given below. The given program is compiled and executed on UBUNTU 18.04 successfully.

// Rust program to create a 
// simple closure

fn main() {
    let msg = "Hello World";
    let my_closure = || println!("Message: {}", msg);
    my_closure();
}

Output:

Message: Hello World

Explanation:

Here, we created a string variable msg initialized with a "Hello World" message. Then we created a closure function my_closure without any parameter. In the closure, we printed a message on the console screen. After that, we called my_closure() function.

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