{"id":109,"date":"2019-08-13T17:23:38","date_gmt":"2019-08-13T17:23:38","guid":{"rendered":"https:\/\/oidema-jp.com\/media\/2019-08-13-172338\/"},"modified":"2019-08-13T17:23:38","modified_gmt":"2019-08-13T17:23:38","slug":"2019-08-13-172338","status":"publish","type":"post","link":"https:\/\/oidema-jp.com\/media\/2019-08-13-172338\/","title":{"rendered":"\u3010Ruby Silver \u8a66\u9a13\u3011hash.clear, Array.product, Array.transcope, Enum.partition"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/oidema-jp.com\/media\/2019-08-13-172338\/#Hashclear\" >Hash.clear<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/oidema-jp.com\/media\/2019-08-13-172338\/#Arrayproduct_Arraytranspose\" >Array.product, Array.transpose<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/oidema-jp.com\/media\/2019-08-13-172338\/#%E4%B8%80%E5%80%8B%E3%81%A5%E3%81%A4%E5%88%86%E8%A7%A3%E3%81%97%E3%81%A6%E3%81%BF%E3%81%A6%E3%81%84%E3%81%8F\" >\u4e00\u500b\u3065\u3064\u5206\u89e3\u3057\u3066\u307f\u3066\u3044\u304f<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/oidema-jp.com\/media\/2019-08-13-172338\/#Arrayproduct\" >Array.product<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/oidema-jp.com\/media\/2019-08-13-172338\/#Arraytranspose\" >Array.transpose<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/oidema-jp.com\/media\/2019-08-13-172338\/#enumpartition\" >enum.partition<\/a><\/li><\/ul><\/nav><\/div>\n<h2 id=\"i-0\"><span class=\"ez-toc-section\" id=\"Hashclear\"><\/span>Hash.clear<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/ref.xaio.jp\/ruby\/classes\/hash\/clear\">\u3010Ruby\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3011\uff1aHash.clear<\/a><\/p>\n<p>clear\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30cf\u30c3\u30b7\u30e5\u306e\u30ad\u30fc\u3068\u5024\u3092\u3059\u3079\u3066\u524a\u9664\u3057\u3066\u30cf\u30c3\u30b7\u30e5\u3092\u7a7a\u306b\u3059\u308b\u3002<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\">h = {<span class=\"synConstant\">a<\/span>: <span class=\"synConstant\">100<\/span>, <span class=\"synConstant\">b<\/span>: <span class=\"synConstant\">200<\/span>}\nh.clear\np h\n<\/pre>\n<h2 id=\"i-1\"><span class=\"ez-toc-section\" id=\"Arrayproduct_Arraytranspose\"><\/span>Array.product, Array.transpose<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3053\u308c\u3092\u5b9f\u884c\u3057\u305f\u3089\u3069\u3046\u306a\u308b\u304b\u3002<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\">arr = [<span class=\"synConstant\">1<\/span>,<span class=\"synConstant\">2<\/span>].product([<span class=\"synConstant\">3<\/span>,<span class=\"synConstant\">4<\/span>]).transpose\np arr\n<\/pre>\n<blockquote>\n<p><span style=\"color: #d32f2f\"><b>\u7b54\u3048<\/b><\/span><br \/>\n[[1, 1, 2, 2], [3, 4, 3, 4]]\n<\/blockquote>\n<h2 id=\"i-2\"><span class=\"ez-toc-section\" id=\"%E4%B8%80%E5%80%8B%E3%81%A5%E3%81%A4%E5%88%86%E8%A7%A3%E3%81%97%E3%81%A6%E3%81%BF%E3%81%A6%E3%81%84%E3%81%8F\"><\/span>\u4e00\u500b\u3065\u3064\u5206\u89e3\u3057\u3066\u307f\u3066\u3044\u304f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"i-3\"><span class=\"ez-toc-section\" id=\"Arrayproduct\"><\/span>Array.product<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/ref.xaio.jp\/ruby\/classes\/array\/product\">\u3010Ruby\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3011\uff1aarray.product<\/a><\/p>\n<p>product\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u914d\u5217\u306e\u8981\u7d20\u3068\u5f15\u6570\u306e\u914d\u5217\u306e\u8981\u7d20\u306e\u7d44\u5408\u305b\u305f\u914d\u5217\u3092\u4f5c\u308b\u3002<\/p>\n<p>\u3067\u306f\u52d5\u304d\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\">arr = [<span class=\"synConstant\">1<\/span>,<span class=\"synConstant\">2<\/span>].product([<span class=\"synConstant\">3<\/span>,<span class=\"synConstant\">4<\/span>])\n<\/pre>\n<blockquote>\n<p><span style=\"color: #d32f2f\"><b>\u7d50\u679c<\/b><\/span><br \/>\n[[1, 3], [1, 4], [2, 3], [2, 4]]\n<\/blockquote>\n<h3 id=\"i-4\"><span class=\"ez-toc-section\" id=\"Arraytranspose\"><\/span>Array.transpose<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/ref.xaio.jp\/ruby\/classes\/array\/transpose\">\u3010Ruby\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3011\uff1aarray.transpose<\/a><\/p>\n<p>transpose\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u914d\u5217\u306e\u914d\u5217\u3092\u884c\u3068\u5217\u304b\u3089\u306a\u308b\u30c7\u30fc\u30bf\u3068\u898b\u7acb\u3066\u3066\u3001\u884c\u3068\u5217\u3092\u5165\u308c\u66ff\u3048\u305f\u914d\u5217\u306e\u914d\u5217\u3092\u4f5c\u6210\u3059\u308b\u3002<br \/>\n\u305f\u3060\u3057\u3001\u914d\u5217\u306e\u5927\u304d\u3055\u304c\u7570\u306a\u308b\u5834\u5408\u306f\u30a8\u30e9\u30fc\u3068\u306a\u308b\u3002<\/p>\n<p>\u3067\u306f\u52d5\u304d\u3092\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3002<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\">arr = [<span class=\"synConstant\">1<\/span>,<span class=\"synConstant\">2<\/span>].product([<span class=\"synConstant\">3<\/span>,<span class=\"synConstant\">4<\/span>]).transpose\n<\/pre>\n<p>\u3053\u3053\u3067\u306f[[1, 3], [1, 4], [2, 3], [2, 4]]\u3092\u884c\u5217\u30c7\u30fc\u30bf\u3092\u898b\u7acb\u3066\u308b\u306e\u3067<\/p>\n<blockquote>\n<p><span style=\"color: #d32f2f\"><b>\u7d50\u679c<\/b><\/span><br \/>\n[[1, 1, 2, 2], [3, 4, 3, 4]]\n<\/blockquote>\n<p>\u500b\u4eba\u7684\u306b\u306f\u3053\u3046\u3044\u3046\u306e\u306f<a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/Python\">Python<\/a>\u3067\u3084\u308a\u305f\u3044\u6c17\u304c\u3059\u308b\u3001\u3001\u3001<\/p>\n<h2 id=\"i-5\"><span class=\"ez-toc-section\" id=\"enumpartition\"><\/span><a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/enum\">enum<\/a>.partition<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/ref.xaio.jp\/ruby\/classes\/enumerable\/partition\">\u3010Ruby\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3011\uff1aenum.partition<\/a><br \/>\npartition\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u8981\u7d20\u30922\u3064\u306e\u914d\u5217\u306b\u5206\u3051\u308b\u3002<br \/>\n\u30d6\u30ed\u30c3\u30af\u5f15\u6570item\u306b\u8981\u7d20\u3092\u5165\u308c\u306a\u304c\u3089\u30d6\u30ed\u30c3\u30af\u3092\u7e70\u308a\u8fd4\u3057\u5b9f\u884c\u3057\u3001\u30d6\u30ed\u30c3\u30af\u306e\u623b\u308a\u5024\u304c\u771f\u306b\u306a\u3063\u305f\u8981\u7d20\u3068\u3001\u507d\u306b\u306a\u3063\u305f\u8981\u7d20\u3092\u305d\u308c\u305e\u308c\u96c6\u3081\u3066\u683c\u7d0d\u3059\u308b\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3053\u306e\u5834\u5408<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\">a,b = (<span class=\"synConstant\">1<\/span>..<span class=\"synConstant\">5<\/span>).partition(&amp;<span class=\"synConstant\">:odd?<\/span>)\np (<span class=\"synSpecial\">\"<\/span><span class=\"synConstant\">a is <\/span><span class=\"synSpecial\">#{<\/span>a<span class=\"synSpecial\">}\"<\/span>)\np (<span class=\"synSpecial\">\"<\/span><span class=\"synConstant\">b is <\/span><span class=\"synSpecial\">#{<\/span>b<span class=\"synSpecial\">}\"<\/span>)\n<\/pre>\n<blockquote>\n<p><span style=\"color: #d32f2f\"><b>\u7d50\u679c<\/b><\/span><br \/>\n\u201ca is [1, 3, 5]\u201d<br \/>\n\u201cb is [2, 4]\u201d<\/p>\n<\/blockquote>\n<p>\u4e0a\u8a18\u3001\u771f\u306e\u5834\u5408\u306e\u307f\u306e\u914d\u5217\u3092\u4f5c\u6210\u3057\u305f\u3044\u5834\u5408\u306f<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\">a, = (<span class=\"synConstant\">1<\/span>..<span class=\"synConstant\">5<\/span>).partition(&amp;<span class=\"synConstant\">:odd?<\/span>)\u3000\n<span class=\"synComment\">## b\u3092\u524a\u9664\u3001\u3053\u306e\u6642\u300c,\u300d\u306f\u305d\u306e\u307e\u307e\u306b\u3059\u308b\u3002<\/span>\np (<span class=\"synSpecial\">\"<\/span><span class=\"synConstant\">a is <\/span><span class=\"synSpecial\">#{<\/span>a<span class=\"synSpecial\">}\"<\/span>)\n<\/pre>\n<blockquote>\n<p><span style=\"color: #d32f2f\"><b>\u7d50\u679c<\/b><\/span><br \/>\n\u201ca is [1, 3, 5]\u201d<\/p>\n<\/blockquote>\n<p>\u4eca\u56de\u306f\u3053\u3053\u307e\u3067\u3002<\/p>\n<p>\u5f53\u30d6\u30ed\u30b0\u3067\u306f<a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/Ruby\">Ruby<\/a> Silver\u306e\u53d7\u9a13\u306b\u5411\u3051\u3066\u30a4\u30f3\u30d7\u30c3\u30c8\u3057\u305f\u5185\u5bb9\u3092\u8a18\u4e8b\u306b\u30e1\u30e2\u3057\u3066\u3044\u308b\u306e\u3067<a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/Ruby\">Ruby<\/a> Silver\u3092\u53d7\u9a13\u3055\u308c\u308b\u65b9\u306f<a href=\"https:\/\/oidema-jp.com\/media\/archive\/category\/Ruby%20Silver\">\u3053\u3061\u3089<\/a>\u3082\u306e\u305e\u3044\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u306d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hash.clear \u3010Ruby\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3011\uff1aHash.clear clear\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30cf\u30c3\u30b7\u30e5\u306e\u30ad\u30fc\u3068\u5024\u3092\u3059\u3079\u3066\u524a\u9664\u3057\u3066\u30cf\u30c3\u30b7\u30e5\u3092\u7a7a\u306b\u3059\u308b\u3002 h = {a: 100, b: 200} h.clear p h Arr &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"footnotes":""},"categories":[11,12],"tags":[],"class_list":{"0":"post-109","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-ruby","7":"category-ruby-silver","8":"entry","9":"nothumb"},"acf":[],"aioseo_notices":[],"mb":[],"mfb_rest_fields":["title","aioseo_notices"],"_links":{"self":[{"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/posts\/109","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/comments?post=109"}],"version-history":[{"count":0,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/posts\/109\/revisions"}],"wp:attachment":[{"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/media?parent=109"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/categories?post=109"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/tags?post=109"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}