How do you write watchers for nested data and trigger them initially?

Problem Statement

Explanation

Use the object syntax with options: { deep: true } to traverse nested properties (be mindful of performance), and { immediate: true } to run the callback right after the watcher is registered.

Code Solution

SolutionRead Only

watch: {
  settings: {
    deep: true,
    immediate: true,
    handler(val){ console.log('settings changed', val) }
  }
}

Practice Sets

This question appears in the following practice sets:

Reactivity, Binding, Lifecycle & Error Handling

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How do you write watchers for nested data and trigger them initially?

Problem Statement

Explanation

Code Solution

Practice Sets

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How do you write watchers for nested data and trigger them initially?

Problem Statement

Explanation

Code Solution

Practice Sets

Related Questions

What is a Single-Page Application (SPA)?

What is a component in Vue.js and how do you create one?

What is a Vue instance and how do you create it?

What are props in Vue.js?

What’s the difference between one-way and two-way data binding in Vue?

More from Vue Js

Master Interviews
Anywhere, Anytime