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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 26 Sep 2017

      1: Can a react person explain something to me? People say that higher order components are faster than render props because they avoid

      3 replies 3 retweets 8 likes
      Show this thread
      Yehuda Katz  🥨‏Verified account @wycats 26 Sep 2017

      2: allocating a closure. But the higher order component pattern does at least one (and usually more) allocations when it copies the props

      6:02 AM - 26 Sep 2017
      • 1 Retweet
      • 5 Likes
      • @pluma@mastodon.social Bucket o' Software Tian Davis [天] Dan Abramov
      2 replies 1 retweet 5 likes
        1. New conversation
        2. Yehuda Katz  🥨‏Verified account @wycats 26 Sep 2017

          3/3: am I miscounting the costs or what?

          5 replies 1 retweet 2 likes
          Show this thread
        3. Yehuda Katz  🥨‏Verified account @wycats 26 Sep 2017

          /cc @mjackson

          2 replies 0 retweets 0 likes
          Show this thread
        4. End of conversation
        1. New conversation
        2. Roman Liutikov‏ @roman01la 26 Sep 2017
          Replying to @wycats

          It is faster only if class instance alloc is cheaper than a closure, which is not?

          1 reply 0 retweets 0 likes
        3. Yehuda Katz  🥨‏Verified account @wycats 26 Sep 2017
          Replying to @roman01la

          You made two classes either way, no? The wrapping component and the one it's calling.

          1 reply 0 retweets 0 likes
        4. Roman Liutikov‏ @roman01la 26 Sep 2017
          Replying to @wycats

          Yes, I'm also confused. These discussions probably missing React-specific stuff like shouldComponentUpdate optimization.

          1 reply 0 retweets 0 likes
        5. Roman Liutikov‏ @roman01la 26 Sep 2017
          Replying to @roman01la @wycats

          So it seems like a potential cost is not in additional closure but in wasted work in children's render method.

          1 reply 0 retweets 0 likes
        6. Yehuda Katz  🥨‏Verified account @wycats 26 Sep 2017
          Replying to @roman01la

          Maybe it would be useful if a render function could return its own sCU based on what dynamically happened?

          1 reply 0 retweets 0 likes
        7. Roman Liutikov‏ @roman01la 26 Sep 2017
          Replying to @wycats

          Nah, it's all fuzz imho, in 99% of cases it doesn't matter. Don't put long running code into render method and you are good to go.

          0 replies 0 retweets 1 like
        8. End of conversation

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