ekimekim · HackerTrans

hace 2 mesesdiscuss

That practice is known as Block booking (https://en.wikipedia.org/wiki/Block_booking) and was supposedly ruled illegal in 1948. The more things change, I guess...

ekimekim

hace 3 mesesdiscuss

> Suddenly turning off services when the billing cap is reached is a big reliability risk for customers.

And yet this is exactly what happens if you exceed a quota limit, which aren't always well signposted and sometimes require days to get the limit raised. I've experienced multiple hours-long outages due to hitting GCP quotas we didn't know existed.

ekimekim

hace 5 mesesdiscuss

To provide a concrete example, this bit me in a typescript codebase:

    type Option<T> = T | undefined

    function f<T>(value: T): Option<T> { ... }

    let thing: string | undefined = undefined;
    let result = f(thing);

Now imagine the definition of Option is in some library or other file and you don't realize how it works. You are thinking of the Option as its own structure and expect f to return Option<string | undefined>. But Option<string | undefined> = string | undefined | undefined = string | undefined = Option<string>.

The mistake here is in how Option is defined, but it's a footgun you need to be aware of.

ekimekim

hace 9 mesesdiscuss

There was one in a previous AoC that I think stumped a lot of AI at the time because it involved something that was similar to poker with the same terminology but different rules. The AI couldn't help but fall into a "this is poker" trap and make a solution that follows the standard rules.

ekimekim

hace 9 mesesdiscuss

As always, there is a relevant XKCD: https://xkcd.com/1968/

ekimekim

el año pasadodiscuss

Twitch puts the ads directly in the HLS stream, but as seperate segments from the content (a HLS stream is made of many small video files, on twitch they're about 2s long). They're trivial to recognize and filter out (they're actually explicitly tagged as ad segments) but it still won't serve you the actual stream you were trying to watch - the ad segments override it. The best you can do is just block until the first non-ad segment arrives.

ekimekim

hace 3 añosdiscuss

And none of this helps you if the server in question isn't actually a HTTP server, but something else (that only ever expected to be exposed on localhost). Depending on the exact syntax it expects, it's plausible that a HTTP request (even a CORS request) might be misinterpreted to do something nefarious.

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