Vue — Introduction

What is Vue.js?

Vue.js is a progressive JavaScript framework for building user interfaces. It's designed to be incrementally adoptable.

Key features

Reactive data binding: UI updates automatically when data changes
Component-based: Build encapsulated components
Virtual DOM: Efficient rendering
Composition API: Flexible code organization
Small footprint: ~20KB gzipped

Why choose Vue?

Feature	Vue	React	Angular
Learning curve	Easy	Medium	Steep
Bundle size	20KB	40KB	65KB
TypeScript	Optional	Optional	Required
State management	Pinia	Redux	NgRx
Template syntax	HTML-based	JSX	HTML-based

Hello World

<!DOCTYPE html>
<html>
<head>
  <script src="https://unpkg.com/vue@3"></script>
</head>
<body>
  <div id="app">
    {{ message }}
  </div>

  <script>
    Vue.createApp({
      data() {
        return {
          message: 'Hello Vue!'
        }
      }
    }).mount('#app')
  </script>
</body>
</html>

The Vue way

<template>
  <div>
    <h1>{{ title }}</h1>
    <button @click="count++">
      Count: {{ count }}
    </button>
  </div>
</template>

<script>
export default {
  data() {
    return {
      title: 'My App',
      count: 0
    }
  }
}
</script>

Mini Practice

Set up a Vue project with Vue CLI
Create a "Hello World" component
Bind a message to the template
Add a click counter

Up Next

Continue with Get Started - Your first Vue application.

Frequently Asked Questions about Introduction

What is Introduction in Vue?

Introduction is a fundamental concept in Vue. This lesson explains it step by step with clear examples, making it easy for beginners to understand.

How do I learn Introduction?

Start by reading the explanation above, then try the code examples. Practice by modifying the examples and experimenting with different values. Hands-on practice is the best way to learn Introduction.

Why is Introduction important in Vue?

Introduction is essential for Vue development. Understanding this concept will help you write better code and solve real-world problems more effectively.