Array Mapping with Vue.js: Unexpected Behavior When Updating Nested State
I'm encountering an unexpected behavior while trying to update a nested state in an array of objects using Vue.js 3. The goal is to map over an array of user objects and update the `isActive` property for a specific user based on their `id`. However, after the update, the entire array seems to reset to its initial state. Here’s a simplified version of my code: ```javascript <template> <div> <button v-for="user in users" :key="user.id" @click="toggleActive(user.id)"> Toggle Active for {{ user.name }} </button> </div> </template> <script> export default { data() { return { users: [ { id: 1, name: 'Alice', isActive: false }, { id: 2, name: 'Bob', isActive: false }, ], }; }, methods: { toggleActive(userId) { this.users = this.users.map(user => { if (user.id === userId) { user.isActive = !user.isActive; } return user; }); }, }, }; </script> ``` After clicking the button to toggle the active state, it seems like the `isActive` property updates, but when I console log `this.users` after the update, it shows the original state without any modifications. I've tried using Vue's `set` method as well, but it still doesn't seem to work. Additionally, the Vue Devtools confirm that the state isn't updating correctly. Is there something I'm missing in the reactivity system of Vue.js, or is there a better way to handle this kind of state update? Any insights would be greatly appreciated!