<body>
<section id="todo_app">
<header>
<input id="new-todo" autofocus>
</header>
<section id="main" style="display: none;">
<input id="toggle-all" type="checkbox"> <label for="toggle-all">Mark all as complete</label>
<ul id="todo-list">
</ul>
</section>
<footer id="footer" style="display: none;">
<span class="todo-count">
<strong class="count"> </strong> items left
</span>
<ul id="filters">
<li>
<a href="#" class="show-all-tasks">All</a>
</li>
<li>
<a href="#" class="show-active-tasks">Active</a>
</li>
<li>
<a href="#" class="show-completed-tasks">Completed</a>
</li>
</ul>
<button id="clear-completed" style="display: none;">Clear completed</button>
</footer>
</section>
<footer>
</footer>
</body>var tasks = [];
function UpdateTasks () {
$('#todo-list').find('li').remove();
$(tasks).each(function (i, t) {
$('#todo-list').append('<li class="' + t.status + '">\
<div class="todo-task">\
<input class="toggle" type="checkbox" data-id="' + t.id + '" ' + (t.status === 'completed' ? ' checked ' : '' ) + '><label class="text">' + t.title + '</label>\
<button class="destroy"></button>\
</div>\
</li>');
if ($('#todo-list li').hasClass('completed')) {
$('#clear-completed').show();
}
if (!$('#todo-list li').hasClass('completed')) {
$('#clear-completed').hide();
}
});
ShowTasksCounter();
}
function ShowTasksCounter() {
$('.count').text(tasks.length);
if (tasks.length < 1) {
$('#footer').hide();
}
}
/* Добавление задач */
$('#new-todo').keyup(function (e) {
const newId = GetNewUserId();
if ((e.keyCode === 13)) {
if ($(this).val() !== '') {
$('#main').show();
$('#footer').show();
var $this = $(this);
var newTask = $this.val();
tasks.push({
id: newId,
title: newTask,
status: 'active'});
UpdateTasks();
// Очистка Input
$('#new-todo').val('');
}
else {
return false;
}
}
});
/* Генерация id */
function GetNewUserId () {
var maxId = tasks.reduce((max, item) => item.id > max ? item.id : max, 0);
return maxId + 1;
}
/* Checkbox */
$('#todo-list').on('click', '.toggle', function (e) {
var id = parseInt(e.target.dataset.id + 1);
tasks[id].status = "completed";
if (!$(this).prop("checked")) {
tasks[id].status = "active";
}
UpdateTasks();
});
$('#toggle-all').on('click', function () {
$(tasks).each(function (i) {
if ($('#toggle-all').prop("checked")) {
tasks[i].status = "completed";
} else {
tasks[i].status = "active";
}
});
UpdateTasks();
});
/* Отображение выбранных задач */
$('.show-all-tasks').on('click', function() {
$('li.active').show();
$('li.completed').show();
$(this).toggleClass('activated');
$('.show-active-tasks').removeClass('activated');
$('.show-completed-tasks').removeClass('activated');
});
$('.show-active-tasks').on('click', function() {
$('li.active').show();
$('li.completed').hide();
$(this).toggleClass('activated');
$('.show-all-tasks').removeClass('activated');
$('.show-completed-tasks').removeClass('activated');
});
$('.show-completed-tasks').on('click', function() {
$('li.active').hide();
$('li.completed').show();
$(this).toggleClass('activated');
$('.show-all-tasks').removeClass('activated');
$('.show-active-tasks').removeClass('activated');
});
/* Удаление */
$('#todo-list').on('click', 'button.destroy', function (e) {
var id = parseInt(e.target.dataset.id);
tasks.splice(id, 1);
console.log(id);
UpdateTasks();
});
function ShowTasks () {
tasks.forEach(function (item, i, tasks) {
console.log(tasks[i].id, tasks[i].title, tasks[i].status);
});
}
/* События кнопки Clear Completed */
$('#clear-completed').on('click', function () {
$('input:checked').parents('li').remove();
$(tasks).each(function (i) {
if (tasks[i].status === "completed") {
tasks.splice(i, 1);
}
});
UpdateTasks();
});
Средний
