Anatomy of Hello world vue app

Thursday 9 November 2023

Anatomy of Hello world vue app

The anatomy of a "Hello world" Vue app is as follows:

index.html: This is the entry point for your Vue app. It contains the necessary HTML code to load the Vue library and your app's main component.
App.vue: This is the main component of your Vue app. It is responsible for rendering the entire app.
HelloWorld.vue: This is a child component of the App component. It is responsible for rendering the "Hello world!" message.

Here is a breakdown of each file:

index.html:

HTML

<!DOCTYPE html>
<html>
<head>
<title>Hello world Vue app</title>
<script src="https://cdn.jsdelivr.net/vue/3/vue.global.min.js"></script>
</head>
<body>
<div id="app"></div>
</body>
</html>

This HTML code loads the Vue library and specifies the #app element as the root element for your Vue app.

App.vue:

HTML

<template>
<div>
<h1>Hello world!</h1>
</div>
</template>

<script>
export default {
name: 'App'
};
</script>

This Vue component defines the App component. The template section defines the HTML code that will be rendered by the component. The script section defines the JavaScript code for the component.

HelloWorld.vue:

HTML

<template>
<div>
<h2>Hello world!</h2>
</div>
</template>

<script>
export default {
name: 'HelloWorld'
};
</script>

This Vue component defines the HelloWorld component. The template section defines the HTML code that will be rendered by the component. The script section defines the JavaScript code for the component.

To run this Vue app, you can use the following command:

vue serve

This will start a development server on port 8080. You can then open your web browser and navigate to http://localhost:8080 to view your app.

You should see the following message on the page:

<h1>Hello world!</h1>
<h2>Hello world!</h2>

This is your first Vue app!

Congratulations! You have now learned the anatomy of a "Hello world" Vue app.

Here are some interview questions and answers for the prompt "Anatomy of a Hello world Vue app":

Q: What are the three main files in a "Hello world" Vue app?

A: The three main files in a "Hello world" Vue app are index.html, App.vue, and HelloWorld.vue.

Q: What is the purpose of the index.html file?

A: The index.html file is the entry point for your Vue app. It contains the necessary HTML code to load the Vue library and your app's main component.

Q: What is the purpose of the App.vue file?

A: The App.vue file is the main component of your Vue app. It is responsible for rendering the entire app.

Q: What is the purpose of the HelloWorld.vue file?

A: The HelloWorld.vue file is a child component of the App component. It is responsible for rendering the "Hello world!" message.

Q: How would you describe the relationship between the App.vue and HelloWorld.vue files?

A: The App.vue file is the parent component of the HelloWorld.vue file. This means that the App.vue file is responsible for managing the HelloWorld.vue file and rendering it to the screen.

Q: What is the difference between the template and script sections in a Vue component?

A: The template section of a Vue component defines the HTML code that will be rendered by the component. The script section of a Vue component defines the JavaScript code for the component.

Q: How would you start a development server for a Vue app?

A: To start a development server for a Vue app, you would use the following command:

vue serve

This will start a development server on port 8080. You can then open your web browser and navigate to http://localhost:8080 to view your app.

I hope these questions and answers help you prepare for your interview!