Vue 3: implementing v-for and dynamic component rendering causing unexpected key mismatch warnings
I'm dealing with I'm reviewing some code and I'm currently working on a Vue 3 application where I dynamically render a list of components based on an array of items fetched from an API. However, I'm working with a warning that states `"[Vue warn]: Duplicate keys detected: ..."` when using `v-for`. I've ensured that each item in my array has a unique identifier, but the warning continues. Here’s a simplified version of my component code: ```vue <template> <div> <component v-for="item in items" :key="item.id" :is="item.component"> <template v-slot:default> <p>{{ item.name }}</p> </template> </component> </div> </template> <script> export default { data() { return { items: [] }; }, mounted() { this.fetchItems(); }, methods: { async fetchItems() { const response = await fetch('https://api.example.com/items'); this.items = await response.json(); } } }; </script> ``` While the `item.id` values are unique, I suspect the scenario may be related to the dynamic components being rendered. I’ve tried using `v-bind:key` with different properties, but it doesn’t seem to resolve the warning. I also noticed that if I add a `v-if` condition to filter out certain items before rendering, the scenario disappears, suggesting that there might be something wrong with the way Vue tracks these dynamic components. Additionally, I am using Vue 3.2.0. Any insights on how to resolve this key mismatch warning or best practices for handling dynamic component lists would be greatly appreciated! My team is using Vue for this desktop app. My development environment is Windows 11.