`v-leave` transition class should be removed in 2.0

[Centaur]

None of the example code has used it. And can someone come up with any real-world leaving animation that does not start with the normal/current state of the element? "No real use".

[yyx990803]

This is different from other deprecated API due to the symmetry and logical completeness - you wouldn't cut off a limb because you hardly use it.

[Centaur]

Ridiculous justification. But you are the boss.

[Centaur]

This is a screenshot from one of the qq group about vuejs. And I predict that such questions will come up again and again in the future, because the users commonly expect symmetric api brings symmetric usage.

We wouldn't decide to cut off a limb not just because we hardly use it, but we would cut it off if we don't use it and it is causing trouble, like the vermiform appendix.

[khty2000]

i meet the same question. first i think it will work as same as v-enter . but it does't。。