How Vue differs from React and Angular - Visual Walkthrough

Concept Flow - How Vue differs from React and Angular

Start: Choose Framework

↓

Vue: Composition API + Templates

↓

React: JSX + Hooks

↓

Angular: TypeScript + Modules + Decorators

↓

Compare Reactivity & Structure

↓

Vue: Reactive refs/signals

↓

React: useState/useEffect

↓

Angular: Signals + Dependency Injection

↓

Compare Component Setup

↓

Vue: <script setup> + Composition API

↓

React: Functional Components + Hooks

↓

Angular: Standalone Components + Decorators

↓

End: Understand Differences

This flow shows how Vue, React, and Angular differ in design, reactivity, and component setup.

Execution Sample

Vue

<script setup>
import { ref } from 'vue'
const count = ref(0)
function increment() {
  count.value++
}
</script>
<template>
  <button @click="increment">{{ count }}</button>
</template>

Vue uses reactive refs and template syntax to update UI on state changes.

Execution Table

Step	Action	State Before	State After	UI Update
1	Initialize count ref	count undefined	count = 0	Button shows 0
2	User clicks button	count = 0	count = 1	Button updates to show 1
3	User clicks button again	count = 1	count = 2	Button updates to show 2
4	No more clicks	count = 2	count = 2	UI remains showing 2

💡 User stops clicking; state and UI remain stable.

Variable Tracker

Variable	Start	After 1	After 2	Final
count.value	undefined	0	1	2

Key Moments - 3 Insights

Why does Vue use count.value instead of just count?

In Vue, ref() creates a reactive object with a .value property holding the actual data. See execution_table step 1 where count is initialized as a ref.

How is Vue's template different from React's JSX?

Vue templates use HTML-like syntax with directives like @click, while React uses JSX which mixes JavaScript and HTML. The execution_sample shows Vue's template with @click.

What makes Vue's reactivity different from Angular's?

Vue uses reactive refs and proxies to track changes, Angular uses signals and dependency injection. Vue's reactivity is simpler and more direct as shown in the variable_tracker.

Visual Quiz - 3 Questions

Look at the execution_table at step 2, what is the value of count?

A undefined

B 1

C 0

D 2

💡 Hint

Check the 'State After' column at step 2 in execution_table.

At which step does the UI first update to show '2'?

A Step 3

B Step 1

C Step 2

D Step 4

💡 Hint

Look at the 'UI Update' column in execution_table for when the button shows 2.

If Vue did not use .value on refs, what would happen to the variable_tracker?

A count.value would hold the number directly

B count would update automatically without .value

C count.value would be undefined throughout

D No change in variable_tracker

💡 Hint

Refer to key_moments about why .value is needed for reactive refs.

Concept Snapshot

Vue uses reactive refs and template syntax for UI updates.
React uses JSX and hooks for state.
Angular uses TypeScript, decorators, and dependency injection.
Vue's Composition API with <script setup> is simple and direct.
Reactivity in Vue tracks .value on refs.
Templates use HTML-like syntax with directives.

Full Transcript

This visual execution compares how Vue differs from React and Angular. Vue uses a Composition API with reactive refs and templates. React uses JSX and hooks. Angular uses TypeScript with decorators and dependency injection. The example shows Vue's count ref initialized to 0. When the user clicks the button, count.value increments and the UI updates automatically. The execution table traces each click and UI update. Variable tracker shows count.value changing from undefined to 0, then 1, then 2. Key moments clarify why Vue uses .value on refs and how templates differ from React's JSX. The quiz tests understanding of state changes and UI updates. The snapshot summarizes Vue's simple reactive model and template syntax compared to React and Angular.