Edit: I do love the analog buttons in the interior though. I despise those big screens with all the controls, and no tactile feedback.

If I had a magic wand, the only things I would add is better nulability checks, add stack traces by default for errors, and exhaustive checks for sum types. Other than that, it does everything I want.

Maybe that's also what will happen with AI investors when the bubble pops or deflates.

    result := InvokeWithErrorLogger(
        func (err error) { // Error handler
            incrementMetric("foo")
            log.Error("bar")
        },
        addTwoNumbers, a, b,
    )

    result, err := addTwoNumbers(a, b)
    if err != nil {
        incrementMetric("foo")
        log.Error("bar")
        return fmt.Errorf("addTwoNumbers(%d, %d) = %v", a, b, err)
    }

Error handling in Go is not just writing "if err != nil { return nil, err }" for every line. You are supposed to enrich the error to add more context to it. For example:

    result, err := addTwoNumbers(a, b)
    if err != nil {
      return fmt.Errorf("addTwoNumbers(%d, %d) = %v", a, b, err)
    }

Not to mention, those helper functions don't account for cases where you don't just want to bubble up an error. What if you want to do more things, like log, emit metrics, clean up resources, and so on? How do you deal with that with the "Handle()" function?

You can also add additional context to the error before bubbling it up. But yes, that part of the point. Instead of bubbling them up, the programmer should instead reflect on whether it is better than just log and proceed, or completely swallow them. This is what error handling is about.

Why on earth would you be on the side of a country like this? Why we should be an ally of the US right now, if Trump can't even uphold agreements he signed himself 5 years ago? What guarantees do we have that, as soon as we decouple from China, the US won't treat us as a vassal because we gave up our only alternative? The only rational choice is to either be neutral or ally with China.

Comments URL: https://news.ycombinator.com/item?id=43372778

Points: 3

# Comments: 0

For the younger folks who organize their parties by texting (iMessages, Whatsapp, Telefram, etc), this can be enticing.