Is $patch atomic?

[ddenev]

Is pinia's $patch method atomic in the sense that if I'm changing multiple state properties in $patch then would reactivity fire for every property change (while in $patch) or will it fire at the end of $patch, when it changed all the properties?

[posva]

Subscriptions will fire after patch but regular watchers will fire depending on the flush option. Eg sync +deep will fire multiple times

[ddenev]

Thank you @posva but I just realized that my question was unclear and when I read your answer I also realized my question was irrelevant :)

To clarify - I wanted to know whether re-rendering would fire for every property change, not reactivity. Which, when I though about it, I realized would fire only once at the end because of the way Vue caches reactive updates. So with this in mind there would be no difference if I update my state properties one by one or with a $patch method - the re-rendering would happen only once at the end.

Which also answers one of my previous wonders about the usage of $patch vs direct state changes - it's only different in that it shows the state change as one single record in Vue Tools instead of multiple updates. Right?