Q1. How do Vue flush timing and the scheduler affect watchers?
Vue 3 batches reactive updates with a scheduler. When trigger fires, the affected render effects and watchers are queued and flushed in a microtask, so several synchronou...
Technical Question Bank · Peer-Reviewed
Job Interview Questions and Answers Directory
Search and filter frequently asked interview questions across technical, programming, and behavioral domains. Tailor your interview preparation by difficulty for freshers or experienced developers (6 available).
Active:
Tag: watchers ×
Q2. How do you watch for nested data changes?
You can use deep watcher by setting `deep: true` in the options object. This option enables us to detect nested value changes inside Objects. ```javascript vm.$watch('som...
Q3. How to trigger watchers on initialization?
You can use `immediate: true` option in order to trigger watchers when the vue instance (or component) is being created. i.e This option will trigger the callback immedia...
Q4. How do you watch route object changes?
You can setup a watcher on the `$route` in your component. It observes for route changes and when changed ,sets the message property. ```javascript watch:{ $route (to, fr...
Q5. What is watch() and how is it used?
The `watch()` function observes a **reactive source**((like `ref`, `reactive`, getter functions or computed values)) and runs a **callback function** whenever that source...
Q6. Whats the difference between `watch()` and `watchEffect()`?
Both watch and watchEffect are Composition API functions used for reactivity, but they serve different purposes and behave differently. **watch:** It is used to watch spe...