`watch` and `watchEffect` don't avoid unnecessary duplicate invocation as it does in Vue3

Question

leafstark opened this issue 3 years ago · comments

Here is an example:

Normally, every time you click the button, the number should increase by 1, but it increases by 2 when using @vue/composition-api in Vue2.

MinatoHikari · Answer 1 · Fri Dec 17 2021 10:32:09 GMT+0800 (China Standard Time)

It needs a dependence collection like vue3.

github-actions · Answer 2 · Wed Feb 16 2022 07:40:43 GMT+0800 (China Standard Time)

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