{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmoznion.hatenadiary.com%2Fentry%2F2017%2F06%2F22%2F005947\" title=\"List::Haystack - A immutable list utility to find and count element - \u305d\u306e\u624b\u306e\u5e73\u306f\u5c3b\u3082\u3064\u304b\u3081\u308b\u3055\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://moznion.hatenadiary.com/entry/2017/06/22/005947","blog_title":"\u305d\u306e\u624b\u306e\u5e73\u306f\u5c3b\u3082\u3064\u304b\u3081\u308b\u3055","published":"2017-06-22 00:59:47","author_name":"moznion","height":"190","image_url":null,"provider_url":"https://hatena.blog","title":"List::Haystack - A immutable list utility to find and count element","width":"100%","provider_name":"Hatena Blog","version":"1.0","type":"rich","categories":["perl"],"blog_url":"https://moznion.hatenadiary.com/","author_url":"https://blog.hatena.ne.jp/moznion/","description":"Perl5\u306e\u8a71\u984c\u3067\u3059\uff0eList::Haystack\u3068\u3044\u3046\u3082\u306e\u3092\u66f8\u304d\u307e\u3057\u305f\uff0eCPAN\u306b\u3082\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u3066\u3044\u307e\u3059\uff0e \u7d4c\u7def\u3068\u3057\u3066\u306f\u4ee5\u4e0b\uff0ePerl\uff0cimmutable\u306a\u611f\u3058\u3067\uff0cList (Array) \u4e2d\u304b\u3089\u8981\u7d20\u3092find\u3057\u305f\u308a\uff0c\u51fa\u73fe\u56de\u6570\u3092\u53d6\u308b\u30e2\u30b8\u30e5\u30fc\u30eb\u3063\u3066\u5b58\u5728\u3057\u3066\u3044\u308b\u3093\u3067\u3057\u305f\u3063\u3051\u2014 \u30d1\u30d6\u30ea\u30c3\u30af\u30a4\u30e1\u30fc\u30b8\u304c\u60aa\u3044 (@moznion) 2017\u5e746\u670820\u65e5 `my $haystack = List::XXX->new([...]); $haystack->find('java');` \u307f\u305f\u3044\u306a\u611f\u3058\u3067\uff0c `$haystack` \u306fimmutable\u306a\u5b58\u5728\u3067\u90fd\u5ea6\u30b9\u30ad\u30e3\u30f3\u3057\u306a\u3044\u3067\u306f\u3084\u304f\u8fd4\u3057\u3066\u304f\u308c\u308b\uff0c\u307f\u305f\u3044\u306a\u2014 \u2026"}