How to Create a Dynamic Array of Objects in Vue.js with Reactive Properties?
I'm optimizing some code but I'm working through a tutorial and I'm integrating two systems and I've looked through the documentation and I'm still confused about I'm working on a Vue.js application where I need to manage a dynamic array of objects that represent user profiles... The main scenario I'm working with is how to properly push new objects into the array while ensuring that Vue's reactivity system picks up these changes. I'm using Vue 3 with the Composition API. Here's a simplified version of what I have: ```javascript import { ref } from 'vue'; export default { setup() { const users = ref([]); const addUser = (name, age) => { users.value.push({ name, age }); // This seems to work, but... }; return { users, addUser }; } }; ``` The scenario arises when I try to mutate the `users` array directly. Sometimes the UI doesn't update as expected, and I see the following warning in the console: "Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-renders." I've tried using `Vue.set()` and creating a new array by spreading the old one like this: ```javascript const addUser = (name, age) => { users.value = [...users.value, { name, age }]; }; ``` While this works better, I am wondering if this is the best practice for ensuring reactivity, especially when dealing with larger datasets. Are there any performance implications or best practices I should be aware of when dynamically updating arrays in Vue 3? Any advice would be greatly appreciated! For context: I'm using Javascript on Linux. What am I doing wrong? This is my first time working with Javascript latest. Hoping someone can shed some light on this. Thanks, I really appreciate it!