{"version":"1.0","height":"190","url":"https://straitwalk.hatenablog.com/entry/20111007/1318005046","blog_title":"\u6210\u3089\u306c\u306f\u4eba\u306e\u70ba\u3055\u306c\u306a\u308a\u3051\u308a","author_url":"https://blog.hatena.ne.jp/straitwalk/","author_name":"straitwalk","image_url":null,"width":"100%","provider_name":"Hatena Blog","description":"Ruby\u306e\u6761\u4ef6\u5f0f\u306e\u7d50\u679c\u306f\u3001 nil\u3068false\u4ee5\u5916\u306f\u3059\u3079\u3066true \u3068\u306a\u308a\u307e\u3059\u3088\u306d\uff1f\u306a\u306e\u3067\u3001 def hoge \"a\" end if hoge p \"TRUE\" else p \"FALSE\" end \u3053\u308c\u306e\u7d50\u679c\u306f \"TRUE\" \u3068\u306a\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001 hoge\u30e1\u30bd\u30c3\u30c9\u306e\u623b\u308a\u5024\u306f\u3001\u3042\u304f\u307e\u3067\u300ca\u300d\u3067\u3042\u308a\u3001 \u300ctrue\u300d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u300choge?\u300d\u307f\u305f\u3044\u306a\u30e1\u30bd\u30c3\u30c9\u306b\u3059\u308b\u5834\u5408\u3001 \u7d50\u679c\u3092bool\u5024\u306b\u3057\u305f\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002 \u305d\u3046\u3044\u3046\u5834\u5408\u306b\u306f\u3001\u3053\u3046\u66f8\u304d\u307e\u3059\u3002 def hoge? !!\"a\" end \u3053\u308c\u3067\u3001\u300choge?\u300d\u306e\u623b\u308a\u5024\u306fbool\u5024\u306b\u306a\u308a\u307e\u3059\u3002 ruby-1.9.2-p290 :001 > !!\"a\u2026","blog_url":"https://straitwalk.hatenablog.com/","published":"2011-10-07 01:30:46","provider_url":"https://hatena.blog","title":"bool\u5024\u306b\u5909\u63db\u3059\u308b\u300c!!\u300d","type":"rich","categories":["Ruby"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fstraitwalk.hatenablog.com%2Fentry%2F20111007%2F1318005046\" title=\"bool\u5024\u306b\u5909\u63db\u3059\u308b\u300c!!\u300d - \u6210\u3089\u306c\u306f\u4eba\u306e\u70ba\u3055\u306c\u306a\u308a\u3051\u308a\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}