notes/Resources/dev/rust.md

Rust Notes

Options

So options are things that maybe contain values.

let option_a: Option<u8> = Some(8);
let option_b: Option<u8> = None;

To get at the value of a Options you have a few options;

let res:u8 = option_a.unwrap(); // using option.unwrap -> panics if value is none
    
if let Some(unwrapped1) = option_a {
    println!("Unwrapped1 {}", unwrapped1);
}else {
   println!("None Unwrapped1");
}

match option_a {
    None => println!("None Unwrapped"),
    Some(unwrapped1) => {
        println!("Unwrapped1 {}", unwrapped1)
    },
}