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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6.1
MarionetteJS
（
Backbone.Marionette
）
133
ポイントがいくつかあります。まず、
el
プロパティを通じて管理対象の
DOM
の要素をリージョ
ンに伝えています。また、ビューに対して
render
を呼び出す必要はなくなりました。
close
を呼
び出す必要もありません（内部的には呼び出されています）。
リージョンを使うと、ビューのライフサイクル管理や
DOM
への表示を自動化できます。ビュー
のインスタンスをリージョンの
show
メソッドに渡すと、リージョンがビューの
render
メソッド
を呼び出してくれます。そして生成された要素は、
DOM
の中に配置されます。
次に
show
メソッドが呼ばれた場合に備えて、リージョンは自身が現在ビューを表示しているか
どうかを記憶しています。新しいビューが渡されると、リージョンは古いビューの
close
メソッ
ドを呼び出し、これを
DOM
から削除します。そして新しいビューに対して、描画や表示の処理を
行います。
close
の呼び出しをリージョンが受け持ってくれるため、あとは
listenTo
を使いさえすれば
ビューのゾンビ化を心配する必要はなくなります。
また、リージョンを適用できるのは
MarionetteJS
のビューだけではありません。
Backbone.js
のビューについても、リージョンの中で管理できます。そのビューに
close
というメソッドが用
意されていれば、ビューが閉じられる際にこのメソッドが呼び出されます。
close
メソッドがない
場合は、
Backbone.View ...
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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.