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mathias's profile
Mathias Bynens
Mathias Bynens
Mathias Bynens
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@mathias

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Mathias BynensVerified account

@mathias

I work on @ChromeDevTools & @v8js at Google and on ECMAScript through TC39. ♥ JavaScript, HTML, CSS, HTTP, performance, security, Bash, Unicode, i18n, macOS.

Munich, Germany
mths.be
Joined January 2007

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    1. Ryan Florence‏ @ryanflorence 5 Oct 2016
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      Replying to @wycats

      which makes the scoping guarantees of either a problem too! Back to var I guess.

      1 reply 0 retweets 0 likes
    2. Yehuda Katz  🥨‏Verified account @wycats 5 Oct 2016
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      Replying to @ryanflorence

      I just use let except for module-wide constants and keep my functions small ;)

      1 reply 0 retweets 12 likes
    3. Ryan Florence‏ @ryanflorence 5 Oct 2016
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      Replying to @wycats

      why use let then? same problem with params

      2 replies 0 retweets 0 likes
    4. Yehuda Katz  🥨‏Verified account @wycats 5 Oct 2016
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      Replying to @ryanflorence

      the reason I don't find "it's uncontroversial" persuasive is that two ways to declare variables instead of one isn't free

      1 reply 0 retweets 3 likes
    5. Yehuda Katz  🥨‏Verified account @wycats 5 Oct 2016
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      Replying to @wycats @ryanflorence

      it means I'm thinking about it all the time, and keeping it in mind isn't free. In small methods, the benefits are ~0 for me

      1 reply 0 retweets 4 likes
    6. Ryan Florence‏ @ryanflorence 5 Oct 2016
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      Replying to @wycats

      methinks you've made a `let` believe out of me 🤔 Or at the very least, I'm completely without opinion on the matter now.

      2 replies 0 retweets 6 likes
    7. Yehuda Katz  🥨‏Verified account @wycats 5 Oct 2016
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      Replying to @ryanflorence

      yay! I don't really ultimately care what individual projects choose, but I don't want people to believe it's a no-brainer :)

      2 replies 1 retweet 1 like
    8. Yehuda Katz  🥨‏Verified account @wycats 5 Oct 2016
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      Replying to @wycats @ryanflorence

      fwiw I think it's more good-than-harm in Rust, where all (deep) mutations have to be annotated.

      1 reply 0 retweets 1 like
    9. Yehuda Katz  🥨‏Verified account @wycats 5 Oct 2016
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      Replying to @wycats @ryanflorence

      I've also had my brain tickled funny by stuff like: function() { const x = {}; x.y = 1; }

      1 reply 0 retweets 7 likes
    10. Kevin Lacker‏ @lacker 5 Oct 2016
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      Replying to @wycats @ryanflorence

      it really bugs me how const is so different than in c++. Let though seems strictly superior to var

      2 replies 0 retweets 0 likes
      Mathias Bynens‏Verified account @mathias 6 Oct 2016
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      Replying to @lacker

      How is `const` different in C++? +@wycats @ryanflorence

      10:13 AM - 6 Oct 2016
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Kevin Lacker‏ @lacker 6 Oct 2016
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          Replying to @mathias @wycats @ryanflorence

          in c++ const is a type modifier, and if foo is const you cannot do http://foo.bar  = baz

          1 reply 0 retweets 1 like
        3. Yehuda Katz  🥨‏Verified account @wycats 6 Oct 2016
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          Replying to @lacker @mathias @ryanflorence

          in Rust it's interestingly "deep interior immutability" (more or less) to leave off `mut`, which is great

          0 replies 0 retweets 1 like
        4. End of conversation

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