react todo app documentation code example

Example: todo using react js

// File: Todo.js

    // [...]

    function Todo() {
        const [tasks, setTasks] = useState([
            {
                title: "Grab some Pizza",
                completed: true
            },
            {
                title: "Do your workout",
                completed: true
            },
            {
                title: "Hangout with friends",
                completed: false
            }
        ]);

        const addTask = title => {
            const newTasks = [...tasks, { title, completed: false }];
            setTasks(newTasks);
        };

        const completeTask = index => {
            const newTasks = [...tasks];
            newTasks[index].completed = true;
            setTasks(newTasks);
        };

        return (
            <div className="todo-container">
                <div className="header">TODO - ITEMS</div>
                <div className="tasks">
                    {tasks.map((task, index) => (
                        <Task
                        task={task}
                        index={index}
                        completeTask={completeTask}
                        key={index}
                        />
                    ))}
                </div>
                <div className="create-task" >
                    <CreateTask addTask={addTask} />
                </div>
            </div>
        );
    }

    // [...]