HN user

mc10

138 karma
Posts2
Comments68
View on HN
Every V4 UUID 2 years ago

Would love it if the scrollbar was draggable on iOS! I thought it was broken until I realized you can click on a spot to scroll to.

The instructions state the following:

Imagine you begin a journey in Seattle WA, facing exactly due east. Then start traveling forward, in a straight line along the Earth’s surface.

Where does it say to "travel exactly due East"?

Perhaps the HN headline doesn't match the article, but the instructions say:

Imagine you begin a journey in Seattle WA, facing exactly due east. Then start traveling forward, in a straight line along the Earth’s surface.

where there isn't any wording saying "go east in a straight line".

I don’t think this is a fair conclusion; web development is harder than desktop GUI development for various reasons.

For one, clients (mobile, desktop) are drastically different with all sorts of downstream implications:

- Differing screen size requiring responsive design

- Internet speeds magnitudes different

- Intermittent internet

- Uneven feature support due to different versions of browsers

- Everything needs to be JS at the end of the day

Desktop apps generally don’t have to worry about any of these issues.

Also, desktop GUI frameworks are typically either fragmented (one per OS) or don’t look OS-native.

Aren't these two forms isomorphic:

    type MyUnion = { type: "foo"; foo: string } | { type: "bar"; bar: string };
vs
    type MyUnion = Foo of { foo: string } | Bar of { bar: string };
You still need some runtime encoding of which branch of the union your data is; otherwise, your code could not pick a branch at runtime.

There's a slight overhead to the TypeScript version (which uses strings instead of an int to represent the branch) but it allows discriminated unions to work without having to introduce them as a new data type into JavaScript. And if you really wanted to, you could use a literal int as the `type` field instead.

The AgeMin/AgeMax example seems more of a deficiency due to a lack of named function parameters; it would be equally clear if it had a type signature (using OCaml as an example) of

    val is_admissible : min_age:int -> max_age:int -> bool

Both Katran[1] by Facebook and Unimog[2] by Cloudflare are L4 load balancers written using XDP. It's factually incorrect to claim that XDP is useless on servers as many companies intentionally choose to design their systems around commodity hardware.

  [1]: https://engineering.fb.com/2018/05/22/open-source/open-sourcing-katran-a-scalable-network-load-balancer/
  [2]: https://blog.cloudflare.com/unimog-cloudflares-edge-load-balancer

In this section:

I think in the context of the merge commit ours/theirs discussion earlier, HEAD^ is “ours” and HEAD^^ is “theirs”.

Should HEAD^^ be HEAD^2 instead?

Yeah I guess it depends on how sophisticated the "hiddenness" of the field is. Instead of straight up using the hidden property (which is easier for a bot to detect), you could try other things, like moving the input field offscreen and using overflow: hidden, or styling it such that it's the same color as the background and is unfillable. Now though you'll need to worrying about tabbing through fields (change tabindex to -1) and screen readers that might pick up the fields.

Maybe I'm thinking specifically of 1Password which can store your previously-filled out form fields as well as autofill fields like address or credit card number.

I've heard this concept described as a "honeypot field" before and it works pretty well as you've said. I'm curious how password managers/autofill avoid tripping up though; are they able to detect that the field is not visible?

This comment (and the subsequent follow-up reply) violates the HN comment guidelines:

- Be kind. Don't be snarky. Converse curiously; don't cross-examine. Edit out swipes.

- When disagreeing, please reply to the argument instead of calling names. "That is idiotic; 1 + 1 is 2, not 3" can be shortened to "1 + 1 is 2, not 3."

  data := F.Pipe3(
   T.MakeTuple2("https://jsonplaceholder.typicode.com/posts/1", "https://catfact.ninja/fact"),
   T.Map2(H.MakeGetRequest, H.MakeGetRequest),
   R.TraverseTuple2(
    readSinglePost,
    readSingleCatFact,
   ),
   R.ChainFirstIOK(IO.Logf[T.Tuple2[PostItem, CatFact]]("Log Result: %v")),
  )
This looks like a pain to modify if you're not intimately familiar with the fp-go library and are just trying to insert a debug statement. Also, the passing two values in parallel via a chain of functions seems really brittle.
TypeScript 5.0 3 years ago

Until WASM can touch the DOM you’re still going to need JS (and hence, TS).