v-for : add a prop 'uniqueKey' to generates a unique key automatically

What problem does this feature solve?

In our business system, there is so many :key object used. We did so many data operate, we have to use it. And now, object key is not advocated, and I’m wondering if there is some prop can do it automatically. It’s will be helpful.

What does the proposed API look like?

<div v-for="item of list" :unique-key="true"></div>

[posva]

You can use the index for this (this is if you don’t care about Vue reusing the elements or components). Keep in mind key is not always required

<div v-for="(item, index) in items" :key="index">
  <!-- content -->
</div>

more at https://vuejs.org/v2/guide/list.html#key

[cyberm1nd]

@vvpvvp, i understand your problem. The main problem with key here is if your data realy have unique ids but, when you create new items in list/table you add them with blank ids like 000-000, then when it goes to server it generates proper uids. But as far as your are in edit mode and adding new items you don’t realy want to generate ids for them, server needs em as blank, so to handle this problem you have to add another one ids and that’s not realy something you want. Adding an option that would generate keys for inner Vue use seems legit request.