{"id":5202,"date":"2024-04-05T11:04:28","date_gmt":"2024-04-05T02:04:28","guid":{"rendered":"https:\/\/taitan916.info\/blog\/?p=5202"},"modified":"2024-04-05T11:51:33","modified_gmt":"2024-04-05T02:51:33","slug":"post-5202","status":"publish","type":"post","link":"https:\/\/taitan916.info\/blog\/archives\/5202","title":{"rendered":"JavaScript\u306e\u65e5\u6642\u30fb\u6642\u523b\u7528\u30e9\u30a4\u30d6\u30e9\u30ea\u300cDay.js\u300d\u306e\u5229\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066"},"content":{"rendered":"<p>JavaScript\u306e\u65e5\u6642\u30fb\u6642\u523b\u7528\u3092\u53d6\u308a\u6271\u3046\u969b\u3001PHP\u3068\u6bd4\u3079\u308b\u3068(\u500b\u4eba\u7684\u306b\u306f)\u4f7f\u3044\u306b\u304f\u304f\u611f\u3058\u308b\u3002\u5177\u4f53\u7684\u306b\u306f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u5468\u308a\u304c\u4f7f\u3044\u3065\u3089\u3044\u3002\u826f\u3055\u305d\u3046\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u8abf\u3079\u305f\u3068\u3053\u308dDay.js\u304c\u8efd\u91cf\u3067\u3001\u3061\u3087\u3063\u3068\u89e6\u3063\u305f\u611f\u3058\u3067\u3082\u5206\u304b\u308a\u3084\u3059\u304b\u3063\u305f\u306e\u3067\u5c0e\u5165\u304b\u3089\u4f7f\u7528\u65b9\u6cd5\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u30e1\u30e2\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>Day.js<\/h2>\n<h3>\u516c\u5f0f\u30b5\u30a4\u30c8<\/h3>\n<p><a href=\"https:\/\/day.js.org\/\" target=\"_blank\" rel=\"noopener\">https:\/\/day.js.org\/<\/a><\/p>\n<h3>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/h3>\n<p><a href=\"https:\/\/day.js.org\/docs\/en\/installation\/installation\" target=\"_blank\" rel=\"noopener\">https:\/\/day.js.org\/docs\/en\/installation\/installation<\/a><\/p>\n<h3>\u5c0e\u5165\u65b9\u6cd5(CDN)<\/h3>\n<p><a href=\"https:\/\/day.js.org\/docs\/en\/installation\/browser\" target=\"_blank\" rel=\"noopener\">\u516c\u5f0f\u6848\u5185<\/a>\u901a\u308a\u4ee5\u4e0b\u3067CDN\u547c\u3073\u51fa\u3057\u3067\u304d\u308b\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">&lt;script src=\"https:\/\/cdn.jsdelivr.net\/npm\/dayjs@1\/dayjs.min.js\"&gt;&lt;\/script&gt;<\/pre>\n<p>\u7570\u306a\u308b\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u826f\u3044\u5834\u5408\u306f\u4ee5\u4e0b\u304b\u3089\u63a2\u3059\u3002<\/p>\n<p><a href=\"https:\/\/cdnjs.com\/libraries\/dayjs\" target=\"_blank\" rel=\"noopener\">https:\/\/cdnjs.com\/libraries\/dayjs<\/a><\/p>\n<p>&nbsp;<\/p>\n<h2>\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/h2>\n<h3>\u73fe\u5728\u65e5\u6642\u306e\u8868\u793a<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/\u30d0\u30cb\u30e9JS\r\nconst toLocaleString_options = {\r\n    year: 'numeric', \r\n    month: '2-digit',\r\n    day: '2-digit',\r\n    hour: '2-digit',\r\n    minute: 'numeric',\r\n    second: 'numeric',\r\n    timeZone: 'Asia\/Tokyo'\r\n};\r\nvar date = new Date();\r\nconsole.log(date.toLocaleString('ja-jp', toLocaleString_options));\r\n\r\n\/\/dayjs\r\nvar date = dayjs().format('YYYY\/MM\/DD HH:mm:ss');\r\nconsole.log(date);<\/pre>\n<p>\u30d0\u30cb\u30e9JS\u3067\u6708\u65e5\u6642\u3042\u305f\u308a\u3092\u30bc\u30ed\u30d1\u30c7\u30a3\u30f3\u30b0\u3059\u308b\u305f\u3081\u306b\u306f\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u3042\u308a\u3002dayjs\u306fPHP\u3068\u4f3c\u305f\u3088\u3046\u306a\u611f\u3058\u3067\u6307\u5b9a\u3067\u304d\u308b\u3002<\/p>\n<p>\u5c1a\u3001\u4ee5\u5f8c\u300cconst toLocaleString_options\u300d\u306e\u5b9a\u7fa9\u90e8\u5206\u306f\u8a18\u8ff0\u3057\u306a\u3044\u304c\u3001\u66f8\u304b\u308c\u3066\u3044\u308b\u3082\u306e\u3068\u3057\u3066\u8aad\u307f\u66ff\u3048\u308b\u3053\u3068\u3002<\/p>\n<h3>\u6307\u5b9a\u65e5\u6642\u306e\u8868\u793a<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/\u30d0\u30cb\u30e9JS\r\nvar date = new Date('2024-02-29 12:34:56');\r\nconsole.log(date.toLocaleString('ja-jp', toLocaleString_options));\r\n\r\n\/\/dayjs\r\nvar date = dayjs('2024-02-29 12:34:56').format('YYYY\/MM\/DD HH:mm:ss');\r\nconsole.log(date);<\/pre>\n<h3>\u3007\u65e5\u5f8c\u306e\u8868\u793a<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/\u30d0\u30cb\u30e9JS\r\nvar date = new Date();\r\ndate.setDate(date.getDate() + 1);\r\nconsole.log(date.toLocaleString('ja-jp', toLocaleString_options));\r\n\r\n\/\/dayjs\r\nvar date = dayjs().add(1, 'day').format('YYYY\/MM\/DD HH:mm:ss');\r\nconsole.log(date);<\/pre>\n<h3>\u3007\u65e5\u524d\u306e\u8868\u793a<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">\/\/\u30d0\u30cb\u30e9JS\r\nvar date = new Date();\r\ndate.setDate(date.getDate() - 1);\r\nconsole.log(date.toLocaleString('ja-jp', toLocaleString_options));\r\n\r\n\/\/dayjs\r\nvar date = dayjs().subtract(1, 'day').format('YYYY\/MM\/DD HH:mm:ss');\r\nconsole.log(date);<\/pre>\n<h3>\u5e74\u6708\u65e5\u3068\u66dc\u65e5\u3092\u305d\u308c\u305e\u308c\u53d6\u5f97<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">const weekday_list = ['\u65e5','\u6708','\u706b','\u6c34','\u6728','\u91d1','\u571f'];\r\n\r\n\/\/\u30d0\u30cb\u30e9JS\r\nvar date = new Date();\r\nvar year = date.getFullYear();\r\nvar month = date.getMonth() + 1;\r\nvar day = date.getDate();\r\nvar weekday = date.getDay();\r\nconsole.log(year, month, day, weekday_list[weekday]);\r\n\r\n\/\/dayjs\r\nvar year = dayjs().year();\r\nvar month = dayjs().month() + 1;\r\nvar day = dayjs().date();\r\nvar weekday = dayjs().day();\r\nconsole.log(year, month, day, weekday_list[weekday]);<\/pre>\n<p>&nbsp;<\/p>\n<h2>\u6240\u611f<\/h2>\n<h3>\u30e1\u30ea\u30c3\u30c8<\/h3>\n<p>\u500b\u4eba\u7684\u306b\u306f\u4ee5\u4e0b\u304c\u30e1\u30ea\u30c3\u30c8\u306b\u611f\u3058\u305f\u3002<\/p>\n<ul>\n<li>\u30e1\u30bd\u30c3\u30c9\u30c1\u30a7\u30fc\u30f3\u304c\u4f7f\u3048\u308b\u306e\u3067\u77ed\u304f\u66f8\u3051\u308b<\/li>\n<li>\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u304c\u6307\u5b9a\u3057\u3084\u3059\u3044<\/li>\n<li>2KB\u306e\u8efd\u91cf\u30e9\u30a4\u30d6\u30e9\u30ea<\/li>\n<\/ul>\n<p>\u30d5\u30ed\u30f3\u30c8\u5074\u3067\u65e5\u6642\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3059\u308b\u969b\u7b49\u306b\u306f\u4f7f\u3063\u3066\u3044\u304d\u305f\u3044\u3002<\/p>\n<h3>\u305d\u306e\u4ed6<\/h3>\n<p><a href=\"https:\/\/qiita.com\/kawanet\/items\/7ce867f5b1ad187c2111\" target=\"_blank\" rel=\"noopener\">day.js\u3088\u308a\u3082\u901f\u304f\u3066\u8efd\u3044cdate\u30e9\u30a4\u30d6\u30e9\u30ea<\/a>\u3068\u3044\u3046\u8a18\u4e8b\u3092\u898b\u304b\u3051\u305f\u3002\u3053\u3061\u3089\u3082\u6a5f\u4f1a\u304c\u3042\u308c\u3070\u8a66\u3057\u3066\u307f\u305f\u3044\u3068\u3053\u308d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>JavaScript\u306e\u65e5\u6642\u30fb\u6642\u523b\u7528\u3092\u53d6\u308a\u6271\u3046\u969b\u3001PHP\u3068\u6bd4\u3079\u308b\u3068(\u500b\u4eba\u7684\u306b\u306f)\u4f7f ... <\/p>\n","protected":false},"author":1,"featured_media":1067,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[100],"class_list":["post-5202","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-javascript","tag-library"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com 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property=\"og:image:secure_url\" content=\"https:\/\/taitan916.info\/blog\/wp-content\/uploads\/2014\/05\/javascript_logo_unofficial-300x300.png\" \/>\n\t\t<meta property=\"og:image:width\" content=\"300\" \/>\n\t\t<meta property=\"og:image:height\" content=\"300\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-04-05T02:04:28+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-04-05T02:51:33+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary\" \/>\n\t\t<meta name=\"twitter:title\" content=\"JavaScript\u306e\u65e5\u6642\u30fb\u6642\u523b\u7528\u30e9\u30a4\u30d6\u30e9\u30ea\u300cDay.js\u300d\u306e\u5229\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066 | \u52c9\u5f37\u3057\u305f\u3053\u3068\u306e\u30e1\u30e2\" \/>\n\t\t<meta name=\"twitter:description\" 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