Section 1.1: Destructuring in Vue.js

One of the valuable features of Vue.js is the ability to destructure object properties, similar to how you would in JavaScript. This technique is especially beneficial when working with objects that have many attributes, as it eliminates the need to repeatedly use dot notation (for example, user.name, user.email, user.age).

Here is an example illustrating object destructuring in Vue.js:

<script setup>

const users = [

{

name: "John Doe",

id: "12345",

email: "[email protected]",

age: 30

},

{

name: "Jane Smith",

id: "67890",

email: "[email protected]",

age: 25

}

];

</script>

<template>

<div>

<h2>User Details</h2>

<div v-for="{ name, id, email, age } in users" :key="id">

<h3>{{ name }}</h3>

<p>ID: {{ id }}</p>

<p>Email: {{ email }}</p>

<p>Age: {{ age }}</p>

</div>

</div>

</template>

Utilizing object destructuring in Vue.js allows for direct access to an object’s properties, thus enhancing code readability and reducing redundancy, ultimately improving maintainability. Check out the code in the VSF Playground.

Section 1.2: Using the Watch API

Monitoring changes in values or properties is often necessary in applications. Vue.js provides the watch API, which allows us to keep an eye on changes and respond accordingly.

The watch property enables the creation of watchers for specific reactive properties or variables within a component. When any of these properties change, the associated watcher function is executed, allowing you to manage those changes effectively.

Here's an example of the watch API in action:

<template>

<div>

<p>Guess a Number (Enter a number):</p>

<input v-model="guess" type="number" />

<p>{{ answer }}</p>

</div>

</template>

<script setup>

import { ref, watch } from 'vue';

const guess = ref();

const answer = ref(''); // Initializing the answer as an empty string

// Watch works directly on a ref

watch(guess, (newGuess, oldGuess) => {

if (newGuess !== '') {

if (newGuess % 2 === 0) {

answer.value = 'Your guess is an even number.';

} else {

answer.value = 'Your guess is an odd number.';

}

} else {

answer.value = ''; // Clear the answer when the guess is empty

}

});

</script>

This example shows how the watch API can be used to track changes in reactive variables and trigger actions based on those changes.

Section 2.1: Accessing Child Component Properties

In some situations, you may need to access properties from child components that fall outside your component's scope. Although this is not typically recommended, as it can lead to tight coupling and other issues, it is possible to access variables and functions from external components.

Take a look at the following example:

<!-- Child Component -->

<template>

<div>Child Component</div>

</template>

<!-- Parent Component -->

<template>

<div>Parent Component</div>

</template>

For a more detailed explanation on how to access child component properties in Vue.js 3, I have created a tutorial that you can check out.

Section 2.2: Passing Objects as Props

While it’s common to pass individual properties as props in Vue.js, did you know that you can also send an entire object as a single prop? This can simplify the prop-passing process and make your components more flexible.

Instead of this:

<script setup>

import UserProfile from './UserProfile.vue';

const users = [

{

name: "John Doe",

id: "12345",

email: "[email protected]",

age: 30

},

{

name: "Jane Smith",

id: "67890",

email: "[email protected]",

age: 25

}

];

</script>

<template>

<div>

<h2>User Profiles</h2>

<UserProfile v-for="(user, index) in users"

:key="index" :name="user.name" :id="user.id" :email="user.email" :age="user.age"

/>

</div>

</template>

You can instead do this:

<script setup>

import UserProfile from './UserProfile.vue';

const users = [

{

name: "John Doe",

id: "12345",

email: "[email protected]",

age: 30

},

{

name: "Jane Smith",

id: "67890",

email: "[email protected]",

age: 25

}

];

</script>

<template>

<div>

<h2>User Profiles</h2>

<UserProfile v-for="(user, index) in users"

:key="index" :user="user"

/>

</div>

</template>

You can find the code here.

Section 2.3: Leveraging Nuxt.js for Server-Side Rendering

One of the standout features of Nuxt.js is its built-in support for Server-Side Rendering (SSR). SSR allows your application to generate HTML on the server and serve a fully rendered page to the client, which can considerably enhance initial load times and SEO performance.

By utilizing Nuxt.js’s SSR capabilities, you can improve user experience through faster initial page loads and better SEO, while also enhancing accessibility for users and search engines. However, keep in mind that SSR may affect server load, so assess its use based on your project’s specific needs.

The first video titled "Top 10 Tips For New Vue.js Developers" offers valuable insights for those starting out, covering essential techniques and best practices to help streamline your development process.

The second video, "5 Tools Every Vue.js Developer Should Know!", presents useful resources and tools that can enhance your workflow and productivity as a Vue.js developer.

More Reads

• How To Get Current Location of a User in JavaScript
• How To Effectively Persist Data in Vue.js App

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