{"version":"1.0","blog_title":"shag \u306e\u65e5\u8a18","image_url":null,"url":"https://shag.hatenadiary.org/entry/20060616","author_name":"shag","height":"190","provider_name":"Hatena Blog","blog_url":"https://shag.hatenadiary.org/","author_url":"https://blog.hatena.ne.jp/shag/","provider_url":"https://hatena.blog","type":"rich","width":"100%","title":"undef \u306a SCALAR \u3092 ARRAY \u3067\u30c7\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3059\u308b\u3068\u3001\u5024\u304c\u5909\u308f\u308b","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fshag.hatenadiary.org%2Fentry%2F20060616\" title=\"undef \u306a SCALAR \u3092 ARRAY \u3067\u30c7\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3059\u308b\u3068\u3001\u5024\u304c\u5909\u308f\u308b - shag \u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":[],"description":"\u3053\u3093\u306a\u30c6\u30b9\u30c8\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f5c\u3063\u3066\u307f\u308b\u3002 #!/usr/local/bin/perl use strict; use warnings; use Data::Dumper; my $hoge = undef; printf \"%s\\n\", Dumper $hoge; for my $hogehoge ( @{ $hoge } ) { } printf \"%s\\n\", Dumper $hoge;% ./test.pl $VAR1 = undef; $VAR1 = [];\u7a7a\u306e ARRAY \u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u306b\u5909\u308f\u3063\u305f\u3002\u305d\u3046\u3044\u3046\u4ed5\u69d8\u306a\u306e\u304b\u3002\u53c2\u7167\u3057\u3066\u3044\u308b\u3064\u3082\u308a\u304c\u5024\u3092\u5909\u5316\u3055\u305b\u3066\u3057\u307e\u3046\u306e\u306f\u3088\u308d\u3057\u304f\u306a\u3044\u6c17\u304c\u3059\u308b\u3002 S\u2026","published":"2006-06-16 00:00:00"}