Vue.js: What is Vue.js and what is it used for?

Vue.js — progressive JavaScript framework for building user interfaces.

Vue.js is a lightweight, incrementally adoptable framework that focuses on the view layer. It makes it easy to create reactive components that automatically update when data changes. The framework provides a gentle learning curve while offering powerful features for complex applications.

Key features:

• Reactive data binding with fine-grained updates.
• Component-based architecture for modular development.
• Virtual DOM for efficient rendering.
• TypeScript support out of the box.
• Composition API for flexible code organization.

1<script setup>
2import { ref, computed } from "vue"
3
4const message = ref("Hello Vue!")
5const reversed = computed(() => message.value.split("").reverse().join(""))
6</script>
7
8<template>
9  <h1>{{ message }}</h1>
10  <p>Reversed: {{ reversed }}</p>
11  <button @click="message = 'Updated!'">Update</button>
12</template>

Main areas of use:

• Single-page applications (SPA).
• Progressive web apps (PWA).
• Desktop and mobile apps (Electron, NativeScript).
• Static site generation (Nuxt).
• Integrating into existing projects.