{"type":"rich","description":"Perl \u203a \u95a2\u6570 \u203a here undef\u95a2\u6570\u3092\u4f7f\u3048\u3070\u3001\u672a\u5b9a\u7fa9\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3042\u308b\u3044\u306f\u3001\u5f15\u6570\u306b\u6307\u5b9a\u3057\u305f\u5909\u6570\u306e\u5024\u3092\u672a\u5b9a\u7fa9\u306b\u3057\u307e\u3059\u3002 undef undef(\u5909\u6570) \u672a\u5b9a\u7fa9\u5024\u306e\u8a2d\u5b9a\u306f\u6b21\u306e\u3088\u3046\u306b\u884c\u3044\u307e\u3059\u3002\u5909\u6570\u300c$name\u300d\u306e\u5024\u304c\u672a\u5b9a\u7fa9\u306b\u306a\u308a\u307e\u3059\u3002 $name = \"Kimoto\"; $name = undef; \u307e\u305f\u6b21\u306e\u3088\u3046\u306bundef\u95a2\u6570\u306e\u5f15\u6570\u306b\u5909\u6570\u3092\u6e21\u3057\u3066\u3082\u3001\u5909\u6570\u306e\u5024\u3092\u672a\u5b9a\u7fa9\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 $name = \"Kimoto\"; undef $name; \u914d\u5217\u3084\u30cf\u30c3\u30b7\u30e5\u306b\u3064\u3044\u3066\u3082undef\u95a2\u6570\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 @names = undef; undef @names;\u2026","width":"100%","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/perlcodesample/","author_name":"perlcodesample","height":"190","url":"https://perlcodesample.hatenadiary.jp/entry/20100220/1264257759","blog_url":"https://perlcodesample.hatenadiary.jp/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fperlcodesample.hatenadiary.jp%2Fentry%2F20100220%2F1264257759\" title=\"undef\u95a2\u6570 - \u672a\u5b9a\u7fa9\u5024 - Perl\u5165\u9580\u30bc\u30df\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":[],"image_url":null,"blog_title":"Perl\u5165\u9580\u30bc\u30df","version":"1.0","title":"undef\u95a2\u6570 - \u672a\u5b9a\u7fa9\u5024","published":"2010-02-20 23:42:39","provider_name":"Hatena Blog"}