February 2014
Intermediate to advanced
372 pages
7h
Japanese
Content preview from Backbone.jsアプリケーション開発ガイド
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4.5
個々の
Todo
項目のビュー
87
在適用されているフィルタを表すリンクには、
selected
というクラスが設定されます。対
象のリンクを判定する際には、ルーターによってセットされた
app.TodoFilter
の値が使わ
れます。この処理によって、それぞれのリンクに対して条件付きのスタイル指定を行えます。
4.
未了の項目が残っているかどうかに応じて、
allCheckbox
の状態が更新されます。
4.5
個々の
Todo
項目のビュー
ここからはビュー
TodoView
について見て行きましょう。このビューは
1
つ
1
つの
Todo
項目に対
応しており、
Todo
項目が更新された際にビューも更新されます。この自動的な更新を可能にする
ために、ビューにイベントリスナーを追加します。このリスナーは個々の
Todo
項目を表す
HTML
を監視し、ここで発生するイベントを待ち受けます。
// js/views/todos.js
var
app = app || {};
// Todo
項目のビュー
// --------------
// Todo
項目を表す
DOM
の要素
app.TodoView = Backbone.View.extend({
//
タグ名は
li
です
tagName: 'li',
//
項目のテンプレートのための関数をキャッシュします
template: _.template($('#item-template').html()),
//
項目に固有の
DOM
イベント
events: {
'dblclick ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.