Fix the 'closure may outlive the current function' error by adding the `move` keyword to transfer ownership of captured variables into the closure.
Add the move keyword to the closure to force it to take ownership of captured variables instead of borrowing them. This ensures the closure owns the data it needs for its entire lifetime, even if the original function returns.
let data = vec![1, 2, 3];
let closure = move || {
println!("{:?}", data);
};
The "closure may outlive the current function" error happens when a small function tries to use a variable that will be deleted before the function finishes running. Adding the move keyword tells the computer to copy the variable into the function so it stays alive as long as the function does. It's like taking a physical notebook with you instead of just reading it from a desk before the desk is cleared.