import { type Result, Ok, Err } from "./result"

const numberIsLessThan10 = (num: number): Result<number, string> => {
  if (num < 10) return Ok(num)
  return Err("number is not less than 10")
}

const number = numberIsLessThan10(5)

if (number.ok) useNumber(number.value) // ok
else if (number.error) console.trace(number.error) // known error
else console.trace("unknown error") // unknown error