Rust Programming Tutorials, Guides & Best Practices

let v = vec![1, 2, 3];

let s = format!("{} {}", "Hello", "world");

• An async function must be executed within an async context.
• The async function returns a Future, which is a lazy value that does nothing until awaited.

The await keyword is used to pause the execution of an async function until the Future it is working on completes. This allows other tasks to run concurrently while waiting for the result.