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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

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    1. Yehuda Katz  🥨‏Verified account @wycats 19 Oct 2017
      Replying to @AdamRackis @dan_abramov @jlongster

      But then you don't need the hook at all

      1 reply 0 retweets 0 likes
    2. James Long‏ @jlongster 19 Oct 2017
      Replying to @wycats @AdamRackis @dan_abramov

      It's useful, rarely, when processing the props is CPU-intensive. Can happen in certain situations

      1 reply 0 retweets 2 likes
    3. Brandon Dail‏ @aweary 19 Oct 2017
      Replying to @jlongster @wycats and

      You also have access to both current *and* next props in cWRP, which you don't have in render.

      1 reply 0 retweets 2 likes
    4. Yehuda Katz  🥨‏Verified account @wycats 19 Oct 2017
      Replying to @aweary @jlongster and

      You do if you stash them. Better to do that when you need it then make the framework snapshot them always, I think.

      1 reply 0 retweets 0 likes
    5. Brandon Dail‏ @aweary 19 Oct 2017
      Replying to @wycats @jlongster and

      I don't think it makes forces the framework to snapshot them, it's just a lifecycle that's called at the right moment when both exist

      1 reply 0 retweets 0 likes
    6. Yehuda Katz  🥨‏Verified account @wycats 19 Oct 2017
      Replying to @aweary @jlongster and

      Depends on the architecture, but Glimmer can avoid work in the general case if we don't have to unconditionally pass the old snapshot.

      1 reply 0 retweets 1 like
    7. Adam Rackis‏ @AdamRackis 19 Oct 2017
      Replying to @wycats @aweary and

      I mean, if the component doesn't actually implement the hook the framework doesn't have to do anything, right?

      1 reply 0 retweets 0 likes
    8. Adam Rackis‏ @AdamRackis 19 Oct 2017
      Replying to @AdamRackis @wycats and

      And that of course assumes @aweary is wrong, which I don't think he is - prolly just a method the fw calls with values it already has.

      2 replies 0 retweets 0 likes
    9. Brandon Dail‏ @aweary 19 Oct 2017
      Replying to @AdamRackis @wycats and

      I think that the old props (internally, memoizedProps) would exist at the point cWRP is called regardless due abortable work in Fiber

      2 replies 0 retweets 1 like
    10. Brandon Dail‏ @aweary 19 Oct 2017
      Replying to @aweary @AdamRackis and

      Maybe @dan_abramov knows if that's a fair assumption though 🤷‍♂️ At the very least they don't seem to exist for only this API

      1 reply 0 retweets 2 likes
      Yehuda Katz  🥨‏Verified account @wycats 19 Oct 2017
      Replying to @aweary @AdamRackis and

      It seems good to be able to avoid stashing off old values if talking about simple, functional components.

      4:56 PM - 19 Oct 2017
      • 1 Like
      • Brandon Dail
      0 replies 0 retweets 1 like

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