{"id":1346,"date":"2020-01-03T19:33:14","date_gmt":"2020-01-03T10:33:14","guid":{"rendered":"https:\/\/took.jp\/?p=1346"},"modified":"2020-06-15T14:37:07","modified_gmt":"2020-06-15T05:37:07","slug":"post-1346","status":"publish","type":"post","link":"https:\/\/took.jp\/tech-blog\/post-1346\/","title":{"rendered":"JavaScript\u3067PHP\u95a2\u6570 array_count_values\u3092\u5b9f\u88c5\u3059\u308b\u3010\u30b3\u30d4\u30da\u3067\u7c21\u5358\u3011"},"content":{"rendered":"

PHP\u95a2\u6570\u3067array_count_values\u3068\u3044\u3048\u3070\u3001\u914d\u5217\u5185\u3067\u540c\u3058\u8981\u7d20\u3092\u30ab\u30a6\u30f3\u30c8\u3057\u3066\u304f\u308c\u308b\u95a2\u6570\u3067\u3059\u3002<\/p>\n

\u305d\u308c\u3092javascript\u3067\u5b9f\u88c5\u3057\u307e\u3057\u305f\u306e\u3067\u3001\u5229\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

 <\/p>\n

\u5b9f\u88c5<\/h2>\n
function array_count_values($array){\r\n\tif(arguments.length != arguments.callee.length) throw new Error('\u6307\u5b9a\u3059\u308b\u5f15\u6570\u306e\u6570\u304c\u9593\u9055\u3063\u3066\u3044\u307e\u3059\u3002');\r\n\tif(!Array.isArray($array)) throw new Error('\u5f15\u6570\u306b\u306f\u3001\u914d\u5217\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002');\r\n\tvar $return_data = [];\r\n\t$array.forEach($value => {\r\n\t\t$return_data[$value] = $return_data[$value] ? $return_data[$value] + 1 : 1;\r\n\t});\t\r\n\treturn $return_data;\r\n}<\/code><\/pre>\n
 <\/p>\n
 <\/p>\n
\u5229\u7528\u65b9\u6cd5<\/h2>\n
\u914d\u5217\u5185\u306e\u540c\u3058\u8981\u7d20\u3092\u30ab\u30a6\u30f3\u30c8\u3057\u307e\u3059\u3002<\/p>\n
\u4f8b\u3048\u3070\u3001<\/p>\n
$sample = ['A','B','C','D','E','F','A','A','B'];\r\nconsole.log(array_count_values($sample));<\/code><\/pre>\n
 <\/p>\n
\u3092\u5b9f\u884c\u3057\u305f\u5834\u5408\u306b\u306f\u3001<\/p>\n
[A: 3, B: 2, C: 1, D: 1, E: 1, F: 1]<\/code><\/pre>\n
 <\/p>\n
\u306e\u3088\u3046\u306a\u7d50\u679c\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
PHP\u95a2\u6570\u3067array_count_values\u3068\u3044\u3048\u3070\u3001\u914d\u5217\u5185\u3067\u540c\u3058\u8981\u7d20\u3092\u30ab\u30a6\u30f3\u30c8\u3057\u3066\u304f\u308c\u308b\u95a2\u6570\u3067\u3059\u3002 \u305d\u308c\u3092javascript\u3067\u5b9f\u88c5\u3057\u307e\u3057\u305f\u306e\u3067\u3001\u5229\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002   \u5b9f\u88c5 function array_count_val\u2026<\/p>\n","protected":false},"author":3,"featured_media":1844,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[62,66],"tags":[],"class_list":["post-1346","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-it","category-javascript"],"_links":{"self":[{"href":"https:\/\/took.jp\/tech-blog\/wp-json\/wp\/v2\/posts\/1346","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/took.jp\/tech-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/took.jp\/tech-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/took.jp\/tech-blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/took.jp\/tech-blog\/wp-json\/wp\/v2\/comments?post=1346"}],"version-history":[{"count":0,"href":"https:\/\/took.jp\/tech-blog\/wp-json\/wp\/v2\/posts\/1346\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/took.jp\/tech-blog\/wp-json\/wp\/v2\/media\/1844"}],"wp:attachment":[{"href":"https:\/\/took.jp\/tech-blog\/wp-json\/wp\/v2\/media?parent=1346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/took.jp\/tech-blog\/wp-json\/wp\/v2\/categories?post=1346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/took.jp\/tech-blog\/wp-json\/wp\/v2\/tags?post=1346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}