How does error propagation work in Rust?

How does error propagation work in Rust?

In Rust, error propagation is typically handled using the Result type, which can represent either a success or an error.

Can you give me an example of using Result for error handling?

Sure! Here's a simple example:

fn divide(a: f64, b: f64) -> Result<f64, String> {
    if b == 0.0 {
        Err("Cannot divide by zero".to_string())
    } else {
        Ok(a / b)
    }
}

What happens if I don't handle the Result properly?

If you don't handle the Result, your program may panic at runtime, or you might miss important error information.

Are there any best practices for error handling in Rust?

Yes! Some best practices include using ? for propagation, defining custom error types, and logging errors for debugging.