Vue.js 3.0 Tutorial

Vue.js 3.0 Component Advanced

Vue.js 3.0 Transitions & Animations

Vue.js 3.0 Reusable & Combinable

Vue.js 3.0 Advanced

Vue.js 3.0 Tools

Vue.js 3.0 Scale

Vue.js 3.0 Accessibility

Vue.js 3.0 Migrating from Vue2

Vue.js 3.0 Contribute Documentation

Vue.js 3.0 API References

Vue.js 3.0 Style Guide

Vue 3.0 Style Guide

Vue 3.0 application configuration

In Vue 3, you have two primary ways to configure a Vue application: using the Options API or the Composition API. Here's a tutorial that shows how to configure a Vue 3 application using the Options API:

Step 1: Initialize your Vue project.

Create a new Vue 3 project using Vue CLI.

npm install -g @vue/cli
vue create my-project

Choose Vue 3 when asked which version of Vue to use.

Step 2: Open the main.js file. This is the main entry point for your application. In main.js, you will import Vue and your root component, create a new Vue instance, and mount it to an element in your HTML.

import { createApp } from 'vue'
import App from './App.vue'

createApp(App).mount('#app')

In the example above, we import the createApp function from Vue and the App component. We then call createApp with App as an argument to create a new Vue application. Finally, we call .mount('#app') to mount the Vue application to an element with the id of "app" in our HTML.

Step 3: Open the App.vue file. This is your root component. Here, you can add any global configuration options you'd like your Vue app to have.

Here's an example of a Vue component using the Options API:

<template>
  <div id="app">
    <h1>{{ title }}</h1>
    <button @click="increaseCount">{{ count }}</button>
  </div>
</template>

<script>
export default {
  data() {
    return {
      title: 'Hello Vue 3!',
      count: 0,
    }
  },
  methods: {
    increaseCount() {
      this.count++;
    },
  },
}
</script>

In this component, we use the data option to return an object containing our component's local state. We also use the methods option to define methods for this component.

Step 4: Run your application.

You can run your Vue 3 application with the following command:

npm run serve

You should now see the title "Hello Vue 3!" and a button displaying a count of 0. When you click the button, the count will increment.

Remember, this is just a basic example. The real power of Vue's configuration options comes when you start to use more advanced features like computed properties, lifecycle hooks, components, directives, and plugins.

Vue 3.0 App Setup and Configuration:
- Description: Vue 3.0 apps can be configured using the vue.config.js file, providing control over webpack, dev server, and other settings.
- Code Example: A basic vue.config.js file:
```
module.exports = {
  // Configuration options...
};
```
Global Configuration in Vue 3.0:
- Description: Configure global settings for Vue 3.0 applications.
- Example: Setting global configuration options in the main entry file.
```
import { createApp } from 'vue';
import App from './App.vue';

const app = createApp(App);

app.config.silent = true;

app.mount('#app');
```