Results and Errors

Alef uses explicit values for operations that can fail.

fn divide(a: f64, b: f64) -> Result<f64, string> {
    if b == 0.0 {
        return Err("division by zero")
    }
    return Ok(a / b)
}

?

The ? operator unwraps Ok(value) and early-returns on Err(error).

let x = divide(20.0, 4.0)?
let y = divide(x, 2.0)?

HTTP Client Results

Native HTTP client calls return Result<HttpResponse, string>:

match std.http.get("https://example.com") {
    Ok(r) => println(r.body),
    Err(e) => println("request failed: {e}"),
}

This avoids silent network failures.