I like programming and anime.

I manage the bot /u/mahoro@lemmy.ml

  • 0 Posts
  • 10 Comments
Joined 2 years ago
Cake day: June 12th, 2023
  • Jim@programming.devtoProgramming@programming.dev•Which protocol or open standard do you like or wish was more popular?English
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    5 months ago

    I also like the POSIX “seconds since 1970” standard, but I feel that should only be used in RAM when performing operations (time differences in timers etc.). It irks me when it’s used for serialising to text/JSON/XML/CSV.

    I’ve seen bugs where programmers tried to represent date in epoch time in seconds or milliseconds in json. So something like “pay date” would be presented by a timestamp, and would get off-by-one errors because whatever time library the programmer was using would do time zone conversions on a timestamp then truncate the date portion.

    If the programmer used ISO 8601 style formatting, I don’t think they would have included the timepart and the bug could have been avoided.

    Use dates when you need dates and timestamps when you need timestamps!

  • Jim@programming.devtoProgramming@programming.dev•parquet vs csvEnglish
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    5 months ago

    Do you use it? When?

    Parquet is really used for big data batch data processing. It’s columnar-based file format and is optimized for large, aggregation queries. It’s non-human readable so you need a library like apache arrow to read/write to it.

    I would use parquet in the following circumstances (or combination of circumstances):

    • The data is very large
    • I’m integrating this into an analytical query engine (Presto, etc.)
    • I’m transporting data that needs to land in an analytical data warehouse (Snowflake, BigQuery, etc.)
    • Consumed by data scientists, machine learning engineers, or other data engineers

    Since the data is columnar-based, doing queries like select sum(sales) from revenue is much cheaper and faster if the underlying data is in parquet than csv.

    The big advantage of csv is that it’s more portable. csv as a data file format has been around forever, so it is used in a lot of places where parquet can’t be used.

  • Jim@programming.devtoGaming@beehaw.org•Let's Discuss: PersonaEnglish
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    5 months ago

    Wow everyone seems to love P3 but I actually liked P4 better. I mean I really enjoyed both, but P4 was a more immersive experience for me. I should reboot my vita and play it again.

    I really felt like P4 had deeper connections and relationships between the characters. It felt more real, and that made the tension in the game more exciting. I love every second of it and am still trying to find a game like it.

    Don’t get me wrong, P3 was great also. The gameplay was superb and the characters were all great. But P4 still has a special place in my heart.

  • Jim@programming.devtoOpen Source@lemmy.ml•Ladybird Browser Team Selects Swift as Preferred LanguageEnglish
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    6 months ago

    Dude, if you’re being obtuse on purpose because you have an ax to grind against Rust, try a different approach. You’re not getting anywhere, clearly by the fact that no one agrees with you.

    If you don’t like that Rust has a restricted trademark, then call that out instead of trying to label the software and it’s license as non-free. It’s literally called out in my source that name restrictions ipso facto does not violate freedom 3.

    But if you genuinely believe that the implementation of the Rust language and it’s trademark is burdensome to create a fork, and you want people to believe you, then you gotta bring receipts. Remember, the benchmark that we both quoted is that it “effectively hampers you from releasing your changes”. It being “not a piece of cake” doesn’t cut it.

    Hint: Google Rust forks since their existence also undermines your claim.

    Good luck.