August 2017
Intermediate to advanced
500 pages
12h 3m
Japanese
Content preview from PythonとJavaScriptではじめるデータビジュアライゼーション
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80
4 章 Web 開発の基本
<body>
<!--
ページコンテンツ
-->
</body>
つまり、ドキュメント
HTML
、文字セットの
8
ビット
Unicode
、
<body>
タグを宣言し、その下
にページコンテンツを追加するだけでよいのです。過去に必要だった作業が大幅に改善されていま
す。
Web
ページに変換するドキュメントの作成に関する限り敷居がとても低くなっています。コ
メントタグの形式は
<!--
コメント
-->
です。
より現実的に考えた場合、
CSS
と
JavaScript
を少し追加したいでしょう。どちらも次のように
<style>
タグと
<script>
タグを使って
HTML
ドキュメントに直接追加します。
<!DOCTYPE html>
<meta charset="utf-8">
<style>
<!-- CSS -->
</style>
<body>
<!--
ページコンテンツ
-->
<script>
<!-- JavaScript -->
</script>
</body>
このシングルページ
HTML
形式は、
d3js.org
の可視化などの例でよく使われます。コードを
例示するときやファイルを管理するときはシングルページを扱う方が便利ですが、一般的には
HTML
、
CSS
、
JavaScript
要素を別々のファイルに分けることをお勧めします。そうすると、コー
ドのサイズが大きくなったときにわかりやすいだけでなく、信頼できるシンタックスハイライトや
コードリンティング（基本的にはその場での構文チェック）などのエディタ特有の言語強化機能を ...
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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.