Introduction
todoApps are a classic project for learning new frameworks and building one with Reactjs & Angular & Vue can provide valuable insights into the strengths and differences of each. in this Post we will walk through the process of creating a basic todo app with each of these popular frameworks and we'll delve into the differences between these popular frameworks and explore their strengths and use cases.
Note
Before you start make sure u have Nodejs and npm installed
1. Creating the Project:
React :
npx create-react-app todo-react cd todo-react Angular :
npm install -g @angular/cli ng new todo-angular cd todo-angular Vue :
npm install -g @vue/cli vue create todo-vue cd todo-vue 2. Implementing the Todo List:
React :
import React, { useState } from 'react'; function App() { const [todos, setTodos] = useState([]); const [inputValue, setInputValue] = useState(''); const addTodo = () => { setTodos([...todos, inputValue]); setInputValue(''); }; const removeTodo = (index) => { const newTodos = [...todos]; newTodos.splice(index, 1); setTodos(newTodos); }; return ( <div> <input type="text" value={inputValue} onChange={(e) => setInputValue(e.target.value)} /> <button onClick={addTodo}>Add</button> <ul> {todos.map((todo, index) => ( <li key={index}> {todo} <button onClick={() => removeTodo(index)}>Remove</button> </li> ))} </ul> </div> ); } export default App; Angular :
import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: './app.component.html', styleUrls: ['./app.component.css'] }) export class AppComponent { todos: string[] = []; inputValue: string = ''; addTodo() { this.todos.push(this.inputValue); this.inputValue = ''; } removeTodo(index: number) { this.todos.splice(index, 1); } } <input type="text" [(ngModel)]="inputValue"> <button (click)="addTodo()">Add</button> <ul> <li *ngFor="let todo of todos; let i = index"> {{ todo }} <button (click)="removeTodo(i)">Remove</button> </li> </ul> Vue :
<template> <div> <input type="text" v-model="inputValue"> <button @click="addTodo">Add</button> <ul> <li v-for="(todo, index) in todos" :key="index"> {{ todo }} <button @click="removeTodo(index)">Remove</button> </li> </ul> </div> </template> <script> export default { data() { return { todos: [], inputValue: '' }; }, methods: { addTodo() { this.todos.push(this.inputValue); this.inputValue = ''; }, removeTodo(index) { this.todos.splice(index, 1); } } } </script> 3. Running the App :
React :
npm start Angular :
npm start || ng serve Vue :
npm run serve congratulations you have successfully built a simple todo app using React & Angular & Vue