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wycats's profile
Yehuda Katz 🥨
Yehuda Katz 🥨
Yehuda Katz  🥨
Verified account
@wycats

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Yehuda Katz  🥨Verified account

@wycats

Tilde Co-Founder, OSS enthusiast and world traveler.

Portland, OR
yehudakatz.com
Joined August 2007

Tweets

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    1. Yehuda Katz  🥨‏Verified account @wycats 1 Oct 2016
      Replying to @wycats @BrendanEich

      I really miss ruby tail guards: def foo(bar) return unless bar.valid? # rest of function end

      1 reply 0 retweets 8 likes
    2. BrendanEich‏Verified account @BrendanEich 1 Oct 2016
      Replying to @wycats

      I know you do! Not gonna get into JS. Agree on linting point.

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

      yeah I don't need tail guards, but if (foo.isValid()) { return; } is a lot :)

      1 reply 0 retweets 1 like
    4. Yehuda Katz  🥨‏Verified account @wycats 1 Oct 2016
      Replying to @wycats @BrendanEich

      with paren-free and getters and more targeted lints, that could have been: if foo.isValid return; Which seems fine for guards

      1 reply 0 retweets 0 likes
    5. BrendanEich‏Verified account @BrendanEich 1 Oct 2016
      Replying to @wycats

      the case of the "then" part being just 'return;' is indeed special: easy to read even when skimming.

      1 reply 0 retweets 0 likes
    6. Yehuda Katz  🥨‏Verified account @wycats 1 Oct 2016
      Replying to @BrendanEich

      the two special cases imo are `return` and simple throws (I abstract complex throws when used in guards to keep 'em shirt)

      1 reply 0 retweets 1 like
    7. Dan Abramov‏ @dan_abramov 1 Oct 2016
      Replying to @wycats @BrendanEich

      I like forcing return to be on next line because I see all exit points when scanning vertically

      1 reply 1 retweet 12 likes
    8. Dan Abramov‏ @dan_abramov 1 Oct 2016
      Replying to @dan_abramov @wycats @BrendanEich

      Especially useful when there is no highlighting, like in diffs

      2 replies 0 retweets 2 likes
    9. Dan Abramov‏ @dan_abramov 1 Oct 2016
      Replying to @dan_abramov @wycats @BrendanEich

      Spotting returns is valuable to avoid accidentally putting teardown logic after early conditional return

      2 replies 0 retweets 3 likes
    10. BrendanEich‏Verified account @BrendanEich 1 Oct 2016
      Replying to @dan_abramov @wycats

      Well put. Being able to "see" the control flow graph is valuable; as is early-return (and no else-after-return gaffe!).

      2 replies 0 retweets 2 likes
      Yehuda Katz  🥨‏Verified account @wycats 1 Oct 2016
      Replying to @BrendanEich @dan_abramov

      the kinds of guards I'm talking about are very visible: function f(b) { if (!b.isValid) return; // rest }

      12:35 PM - 1 Oct 2016
      • 2 Likes
      • Mathias Iden Yann Brelière   ⁧🤡
      3 replies 0 retweets 2 likes
        1. New conversation
        2. Yehuda Katz  🥨‏Verified account @wycats 1 Oct 2016
          Replying to @wycats @BrendanEich @dan_abramov

          Frankly, I find that no-newline + mandatory curlies to create way more visual ambiguity.

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

          function f(b) { if (b.isValid) { return; } more(things); } ^^ visually less clear to me

          0 replies 0 retweets 3 likes
        4. End of conversation
        1. New conversation
        2. Dan Abramov‏ @dan_abramov 1 Oct 2016
          Replying to @wycats @BrendanEich

          When condition is long I could miss return at the end. But it depends for sure.

          1 reply 0 retweets 1 like
        3. Yehuda Katz  🥨‏Verified account @wycats 1 Oct 2016
          Replying to @dan_abramov @BrendanEich

          if the condition is long, I don't consider it a "guard" and don't use this style.

          2 replies 0 retweets 3 likes
        4. Yehuda Katz  🥨‏Verified account @wycats 1 Oct 2016
          Replying to @wycats @dan_abramov

          function f(b) { let valid = ...; let cached = ...; if (!valid) return; if (cached) return cached; // ...rest }

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

          to be honest, I have no problem with any style, just speaking out against zero-tolerance for braceless, which is dominant

          1 reply 0 retweets 5 likes
        6. Jason Mulligan‏ @jasonmulligan 1 Oct 2016
          Replying to @wycats @dan_abramov

          not that great for debugging; you gotta break on the evaluation or before & step through

          1 reply 0 retweets 0 likes
        7. Yehuda Katz  🥨‏Verified account @wycats 1 Oct 2016
          Replying to @jasonmulligan @dan_abramov

          say more

          1 reply 0 retweets 0 likes
        8. Jason Mulligan‏ @jasonmulligan 1 Oct 2016
          Replying to @wycats @dan_abramov

          just experience; i prefer succinct debugging. if something takes too much effort to debug it’s probably not great

          1 reply 0 retweets 0 likes
        9. Yehuda Katz  🥨‏Verified account @wycats 1 Oct 2016
          Replying to @jasonmulligan @dan_abramov

          what's hard to debug about it?

          1 reply 0 retweets 0 likes
        10. 17 more replies
        1. Mathias Iden‏ @mattidea 1 Oct 2016
          Replying to @wycats @BrendanEich @dan_abramov

          this pattern is great

          0 replies 0 retweets 0 likes
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