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fix(api-watch): watching nested ref array w/ deep doesn't work #808

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merged 1 commit into from Sep 9, 2021
Merged

fix(api-watch): watching nested ref array w/ deep doesn't work #808

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6 changes: 5 additions & 1 deletion src/apis/watch.ts
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Expand Up @@ -341,7 +341,11 @@ function createWatcher(
}

const applyCb = (n: any, o: any) => {
if (isMultiSource && n.every((v: any, i: number) => Object.is(v, o[i])))
if (
!deep &&
isMultiSource &&
n.every((v: any, i: number) => Object.is(v, o[i]))
)
return
// cleanup before running cb again
runCleanup()
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10 changes: 10 additions & 0 deletions test/v3/runtime-core/apiWatch.spec.ts
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Expand Up @@ -572,4 +572,14 @@ describe('api: watch', () => {
await nextTick()
expect(dummy).toEqual([1, 2])
})

// #805 #807
it('watching sources: [ref<[]>] w/ deep', async () => {
const foo = ref([1])
const cb = jest.fn()
watch([foo], cb, { deep: true })
foo.value.push(2)
await nextTick()
expect(cb).toBeCalledTimes(1)
})
})