March 2017
Intermediate to advanced
248 pages
3h 10m
Japanese
Content preview from Reactビギナーズガイド ―コンポーネントベースのフロントエンド開発入門
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1章Hello world
Reactを使ったアプリケーション開発への旅を始めましょう。この章では、Reactのセットアップ方法と、Hello worldと出力するだけの初歩的なWebアプリケーションの作成について学びます。
1.1 セットアップ
まず初めに、Reactライブラリを入手しましょう。とても簡単です。
http://reactjs.comにアクセスすると、公式GitHubページ（http://facebook.github.io/react/）にリダイレクトされます。ページの右上にあるバージョン番号のリンクをクリックし、続いてZIPファイル（react-15.4.1.zipなど）へのリンクをクリックするとダウンロードが始まります。このファイルを解凍し、中に含まれているディレクトリをどこか見つけやすい場所にコピーしてください。
例えば次のようにします†1。
$mkdir ~/reactbook$mv ~/Downloads/react-15.4.1/ ~/reactbook/react
[†1] 訳注：これは、Safariを使ってダウンロードした場合です。Safariの場合は、ダウンロードと同時に自動で圧縮ファイルが展開されますが、この挙動はブラウザによって異なります。場合によっては、ダウンロードしたファイルを手動で展開する必要があるかもしれません。
すると、作業ディレクトリ（reactbook）の内容は図1-1のようになります。
これらのファイルの中で、どんな場合にも必要なのは~/reactbook/react/build/react.jsだけです。他のファイルについては、追って紹介します。
Reactではディレクトリ構造に制約はありません。別のディレクトリに移動したり、ファイル名を変えたりしても問題ありません。 ...
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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.