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@johnsoncodehk johnsoncodehk commented Aug 27, 2023

Fix #311, fix #9149, this PR is depends on #5912.

For the following code, this PR reduces the triggering of unnecessary effects.

const arr = reactive([1, 2, 3])
effect(() => {
  for (let i = 0; i < arr.length; i++) arr[i]
  console.log(arr)
})
arr.shift()

Before output:

[ 1, 2, 3 ]
[ 2, 2, 3 ]
[ 2, 3, 3 ]
[ 2, 3, <1 empty item> ]
[ 2, 3 ]

PR output:

[ 1, 2, 3 ]
[ 2, 3 ]

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johnsoncodehk commented Sep 7, 2023

For the failed tests, 1591ce1 (#9056) directly modified the test result, because now that was better result in expected.

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This has been merged with #5912 to reduce review effort.

@johnsoncodehk johnsoncodehk deleted the array-effect branch September 9, 2023 04:50
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computed triggers watcher of sync twice
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