May 2019
Intermediate to advanced
464 pages
9h 22m
Japanese
Content preview from Node.jsデザインパターン 第2版
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249
8
章
ユニバーサル
JavaScript
JavaScript
は
1995
年に生まれ、当初の目的はウェブ開発者にブラウザ内でコードを直接実行する力
を与え、動的かつ対話的なウェブサイトを作れるようにしようというものでした。
以来、
JavaScript
は大きく成長し、今では非常に有名で広く使われている言語になりました。誕生し
たばかりの
JavaScript
は非常に単純で限られた機能しかもたない言語でしたが、今日ではブラウザで実
行しなくても、どのような種類のアプリケーションも作成できる、完全な汎用言語とみなせるようにな
りました。実際、
JavaScript
は現在では、フロントエンドのアプリケーション、ウェブサーバ、モバイ
ルアプリケーションを動かし、ウェアラブル機器、サーモスタットやドローンにまで使われているので
す。
複数のプラットフォームやデバイスで横断的に使えることから、
JavaScript
開発者の間で新
しい動き
が起こっています。同じプロジェクト内の異なる環境間におけるコード再利用を単純化できるようにし
ようというのです。
Node
に関連した例としては、サーバ（バックエンド）とブラウザ（フロントエンド）
とで簡単にコードを共有できるようなウェブアプリケーションの作成があります。このコード再利用へ
の努力は、当初は「アイソモーフィック
JavaScript
」と呼ばれていましたが、現在では多くの場合「ユニ
バーサル
JavaScript
」と呼ばれています。
この章では、特にウェブ開発の領域におけるユニバー
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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.