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Watch handler is not immediately called when setup with multiple sources all having an undefined value #5032

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Stnaire opened this issue Dec 3, 2021 · 0 comments · Fixed by #5033
Closed

Watch handler is not immediately called when setup with multiple sources all having an undefined value #5032

Stnaire opened this issue Dec 3, 2021 · 0 comments · Fixed by #5033
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🐞 bug Something isn't working scope: reactivity

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@Stnaire
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Stnaire commented Dec 3, 2021

Version

3.2.23

Reproduction link

sfc.vuejs.org/

Steps to reproduce

Create a watcher using the composition api that takes an array of refs as source, all resolving to an undefined value.

What is expected?

The handler should be called immediately no matter the value of the properties being watched.

What is actually happening?

The handler is only called if at least one of the values is not undefined.
@posva posva added 🐞 bug Something isn't working scope: reactivity has workaround A workaround has been found to avoid the problem and removed has workaround A workaround has been found to avoid the problem labels Dec 3, 2021
@LinusBorg LinusBorg mentioned this issue Dec 3, 2021
Merged
LinusBorg added a commit that referenced this issue Dec 3, 2021
@LinusBorg
fix: handle undefined as initial value when watching multiple values
c474805 
fix: #5032
@nickrum nickrum mentioned this issue Jul 26, 2022
Merged
9 tasks
@thecrypticace thecrypticace mentioned this issue Sep 19, 2022
Merged
@LinusBorg LinusBorg mentioned this issue Oct 12, 2022
Closed
LinusBorg added a commit that referenced this issue Oct 20, 2022
@LinusBorg
fix(runtime-core): watching multiple values - handle undefined as i…
bc167b5 
…nitial values (fix: #5032) (#5033)
chrislone pushed a commit to chrislone/core that referenced this issue Feb 4, 2023
@LinusBorg
fix(runtime-core): watching multiple values - handle undefined as i…
402f3da 
…nitial values (fix: vuejs#5032) (vuejs#5033)
zhangzhonghe pushed a commit to zhangzhonghe/core that referenced this issue Apr 12, 2023
@LinusBorg @zhangzhonghe
fix(runtime-core): watching multiple values - handle undefined as i…
a468476 
…nitial values (fix: vuejs#5032) (vuejs#5033)
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🐞 bug Something isn't working scope: reactivity
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@posva @Stnaire