First look at the official definition of. sync.
Let’s look at the v-model again.
The objectives of both are the same: the subcomponent and external data are synchronized and bound in two directions
There can only be one v-model.
Personally, the other thing is the semantic difference.
prop.syncIndicates that this subassembly modifies the value of the parent subassembly.
v-modelIndicates that this is a
Form typeThe component of the.