Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- import React, { useState, useEffect } from 'react';
- import './App.css';
- function App() {
- const [todo, setTodo] = useState('');
- const [todos, setTodos] = useState([]);
- function handleChangeTodo(event) {
- setTodo(event.target.value);
- }
- function handleAddTodo(event) {
- if (event.key == 'Enter' && todo.trim().length > 0) {
- setTodos([
- ...todos,
- { id: Date.now(), completed: false, text: event.target.value },
- ]);
- setTodo('');
- }
- }
- function handleEditTodo(id) {
- return function (event) {
- event.stopPropagation();
- // edit todo
- };
- }
- function handleToggleTodo(id) {
- setTodos(
- todos.map((todo) =>
- todo.id == id
- ? {
- ...todo,
- completed: !todo.completed,
- }
- : todo
- )
- );
- }
- function handleDeleteTodo(id) {
- return function (event) {
- event.stopPropagation();
- setTodos(todos.filter((todo) => todo.id !== id));
- };
- }
- const uncompletedTodos = todos.filter((todo) => !todo.completed).length;
- return (
- <div className="App">
- <h1>TodoList ({uncompletedTodos})</h1>
- <div>
- <input
- type="text"
- value={todo}
- onChange={handleChangeTodo}
- onKeyPress={handleAddTodo}
- />
- </div>
- <div className="todos">
- {todos.map((todo) => {
- return (
- <div
- onClick={() => handleToggleTodo(todo.id)}
- className={`todo ${todo.completed ? 'completed' : ''}`}
- key={todo.id}
- >
- <span>{todo.text}</span>
- <button onClick={handleEditTodo(todo.id)}>Edit</button>
- <button onClick={handleDeleteTodo(todo.id)}>Delete</button>
- </div>
- );
- })}
- </div>
- </div>
- );
- }
- export default App;
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement