February 2013
Intermediate to advanced
380 pages
7h 45m
Japanese
Content preview from Nodeクックブック
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300
9 章 自分の Node モジュールを作成する
assert(stats.duration.minutes < 60, 'duraion.minutes
は
60
より小さくなければなりません。
');
正規表現を使って、文字列のフォーマットを判定している例もあります。
assert(stats.timesig.match(/^\d+:\d+:\d+$/),
'timesig
は
HH:MM:SS
フォーマットでなければなりません。
');
このスクリプトでは他に、
assert.equal
と
assert.notStrictEqual
を使用しています。
assert.
equal
は暗黙的に型変換を行った上で等値になるかどうかの判定を行い（
==
：等値演算子に相当）、
assert.strictEqual
は型と値の両方を厳密に比較し同値になるかどうかの判定を行います（
===
：
同値演算子に相当）。
assert.notEqual
と
assert.notStrictEqual
はこれらの逆で、等値・同値に
ならないかどうかを判定します。
duration
オブジェクトのプロパティ（
hours
、
minutes
など）の存在判定に
assert.
notStrictEqual
を利用しています。
関連するレシピ
●
「レシピ
9.2
モジュールのモックアップを作成する」
●
「レシピ
9.3
モジュールをリファクタリングする」
●
「レシピ
9.4
モジュール
API
を拡張する」
ミニレシピ
9.1.1
should.js
でユニットテストを行う
Node.js ...
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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.