<\/span><\/h4>\nfunction formatDate(date) {\r\n const year = date.getFullYear();\r\n const month = ('0' + (date.getMonth() + 1)).slice(-2);\r\n const day = ('0' + date.getDate()).slice(-2);\r\n return `${year}-${month}-${day}`;\r\n}\r\n\r\nconst today = new Date();\r\nconst formattedDate = formatDate(today);\r\nconsole.log(formattedDate); <\/code><\/pre>\n<\/span>\u7d50\u679c<\/span><\/h4>\n\u672c\u65e5\u304c”2023\/05\/02″\u306a\u306e\u3067\u305d\u306e\u7d50\u679c\u304c\u8fd4\u308a\u307e\u3059\u3002<\/P><\/p>\n
\"2023-05-02\"<\/code><\/div>\n<\/span>YYYYMMDD\u5f62\u5f0f\u3067\u51fa\u529b\u3059\u308b<\/span><\/h3>\n\u6b21\u306fYYYYMMDD\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u5f62\u5f0f\u3067\u65e5\u4ed8\u3092\u51fa\u529b\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/P>
\n
\u3053\u306e\u95a2\u6570\u306f\u3001\u5f15\u6570\u3068\u3057\u3066\u6e21\u3055\u308c\u305fDate\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u3001YYYYMMDD\u5f62\u5f0f\u306e\u6587\u5b57\u5217\u306b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3057\u3066\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
\u5185\u90e8\u7684\u306b\u306f\u3001getFullYear()\u3001getMonth()\u3001getDate()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u5e74\u3001\u6708\u3001\u65e5\u3092\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u6708\u3068\u65e5\u306f\u3001slice()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001’0’\u3092\u5148\u982d\u306b\u8ffd\u52a0\u3057\u30662\u6841\u306b\u306a\u308b\u3088\u3046\u306b\u3057\u3001slice(-2)\u3067\u5f8c\u308d\u304b\u30892\u6841\u3092\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002<\/P><\/p>\n
<\/span>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/span><\/h4>\nfunction formatDate(date) {\r\n const year = date.getFullYear();\r\n const month = ('0' + (date.getMonth() + 1)).slice(-2);\r\n const day = ('0' + date.getDate()).slice(-2);\r\n return `${year}${month}${day}`;\r\n}\r\n\r\nconst today = new Date();\r\nconst formattedDate = formatDate(today);\r\nconsole.log(formattedDate); <\/code><\/pre>\n<\/span>\u7d50\u679c<\/span><\/h4>\n\u672c\u65e5\u304c”2023\/05\/02″\u306a\u306e\u3067\u305d\u306e\u7d50\u679c\u304c\u8fd4\u308a\u307e\u3059\u3002<\/P><\/p>\n
\"20230502\"<\/code><\/div>\n<\/p>\n
\n
\n
![\"\u30bf\u30ab\u30d2\u30ed\"](\"\/wp-content\/uploads\/2021\/07\/taka_kao3.gif\")
<\/div>\n
\u30bf\u30ab\u30d2\u30ed<\/div>\n<\/div>\n
\u4e0a\u8a18\u306e\u51fa\u529b\u30d1\u30bf\u30fc\u30f3\u304b\u3089\u30cf\u30a4\u30d5\u30f3\u300c-\u300d\u3092\u6d88\u3057\u305f\u3060\u3051\u306e\u51e6\u7406\u5185\u5bb9\u3068\u306a\u308a\u307e\u3059\u3002<\/div>\n<\/div>\n
<\/p>\n
<\/span>YYYY\/MM\/DD\u5f62\u5f0f\u3067\u51fa\u529b\u3059\u308b<\/span><\/h3>\nYYYY\/MM\/DD\u306e\u5f62\u5f0f\u3067\u65e5\u4ed8\u3092\u51fa\u529b\u3059\u308b\u306b\u306f\u3001toLocaleDateString()\u30e1\u30bd\u30c3\u30c9\u306b\u5f15\u6570\u3068\u3057\u3066’ja-JP’\u3068{ year: ‘numeric’, month: ‘2-digit’, day: ‘2-digit’ }\u3092\u6e21\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306f\u3001\u65e5\u672c\u8a9e\u306e\u30ed\u30b1\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3001\u5e74\u306f\u6570\u5024\u3001\u6708\u3068\u65e5\u306f2\u6841\u306e\u6570\u5024\u3067\u8868\u793a\u3059\u308b\u305f\u3081\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u65e5\u4ed8\u306e\u533a\u5207\u308a\u6587\u5b57\u3068\u3057\u3066\/\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u884c\u3046\u524d\u306b\u533a\u5207\u308a\u6587\u5b57\u306f\u6307\u5b9a\u3092\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/P><\/p>\n
<\/span>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/span><\/h4>\nfunction formatDate(date) {\r\n const options = { year: 'numeric', month: '2-digit', day: '2-digit' };\r\n return date.toLocaleDateString('ja-JP', options);\r\n}\r\n\r\nconst today = new Date();\r\nconst formattedDate = formatDate(today);\r\nconsole.log(formattedDate); <\/code><\/pre>\n<\/span>\u7d50\u679c<\/span><\/h4>\n\u51fa\u529b\u7d50\u679c\u3067\u3059\u3002<\/P>
\n
\u672c\u65e5\u304c”2023\/05\/02″\u306a\u306e\u3067\u305d\u306e\u7d50\u679c\u304c\u8fd4\u308a\u307e\u3059\u3002<\/P><\/p>\n
\"2023\/05\/02\"<\/code><\/div>\n<\/span>YYYY\/MM\/DD hh:mm:ss\u5f62\u5f0f\u3067\u51fa\u529b\u3059\u308b<\/span><\/h3>\nYYYY\/MM\/DD hh:mm:ss\u306e\u5f62\u5f0f\u3067\u65e5\u4ed8\u3092\u51fa\u529b\u3059\u308b\u306b\u306f\u3001toLocaleString()\u30e1\u30bd\u30c3\u30c9\u306b\u5f15\u6570\u3068\u3057\u3066’ja-JP’\u3068{ year: ‘numeric’, month: ‘2-digit’, day: ‘2-digit’, hour: ‘2-digit’, minute: ‘2-digit’, second: ‘2-digit’ }\u3092\u6e21\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306f\u3001\u65e5\u672c\u8a9e\u306e\u30ed\u30b1\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3001\u5e74\u306f\u6570\u5024\u3001\u6708\u3068\u65e5\u306f2\u6841\u306e\u6570\u5024\u3001\u6642\u5206\u79d2\u306f2\u6841\u306e\u6570\u5024\u3067\u8868\u793a\u3059\u308b\u305f\u3081\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u306a\u304a\u3001\u65e5\u4ed8\u3068\u6642\u523b\u306e\u533a\u5207\u308a\u6587\u5b57\u3068\u3057\u3066\/\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u884c\u3046\u524d\u306b\u533a\u5207\u308a\u6587\u5b57\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/P><\/p>\n
<\/span>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/span><\/h4>\nfunction formatDate(date) {\r\n const options = { year: 'numeric', month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit', second: '2-digit'};\r\n return date.toLocaleString('ja-JP', options);\r\n}\r\n\r\nconst now = new Date();\r\nconst formattedDateTime = formatDate(now);\r\nconsole.log(formattedDateTime); <\/code><\/pre>\n<\/span>\u7d50\u679c<\/span><\/h4>\n\u51fa\u529b\u7d50\u679c\u3067\u3059\u3002<\/P>
\n
\u5b9f\u884c\u6642\u70b9\u304c”2023\/05\/02 23:39:21″\u306a\u306e\u3067\u305d\u306e\u7d50\u679c\u304c\u8fd4\u308a\u307e\u3059\u3002<\/P><\/p>\n
\"2023\/05\/02 23:39:21\"<\/code><\/div>\n<\/span>YYYY\/MM\/DD hh:mm:ss.iii\uff08\u30df\u30ea\u79d2\u8ffd\u52a0\uff09\u5f62\u5f0f\u3067\u51fa\u529b\u3059\u308b<\/span><\/h3>\nYYYY\/MM\/DD hh:mm:ss.iii\u306e\u30df\u30ea\u79d2\u8ffd\u52a0\u5f62\u5f0f\u3067\u65e5\u4ed8\u3092\u51fa\u529b\u3059\u308b\u306b\u306f\u3001toLocaleString()\u30e1\u30bd\u30c3\u30c9\u306b\u5f15\u6570\u3068\u3057\u3066’ja-JP’\u3068{ year: ‘numeric’, month: ‘2-digit’, day: ‘2-digit’, hour: ‘2-digit’, minute: ‘2-digit’, second: ‘2-digit’, fractionalSecondDigits: 3 }\u3092\u6e21\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u308c\u306f\u3001\u65e5\u672c\u8a9e\u306e\u30ed\u30b1\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3001\u5e74\u306f\u6570\u5024\u3001\u6708\u3068\u65e5\u306f2\u6841\u306e\u6570\u5024\u3001\u6642\u5206\u79d2\u306f2\u6841\u306e\u6570\u5024\u3001\u5c0f\u6570\u70b9\u4ee5\u4e0b3\u6841\u306e\u79d2\u3067\u8868\u793a\u3059\u308b\u305f\u3081\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u306a\u308a\u307e\u3059\u3002<\/P><\/p>\n
<\/span>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/span><\/h4>\nfunction formatDate(date) {\r\n const options = { year: 'numeric', month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit', second: '2-digit', fractionalSecondDigits: 3 };\r\n return date.toLocaleString('ja-JP', options);\r\n}\r\n\r\nconst now = new Date();\r\nconst formattedDateTime = formatDate(now);\r\nconsole.log(formattedDateTime); <\/code><\/pre>\n<\/span>\u7d50\u679c<\/span><\/h4>\n\u51fa\u529b\u7d50\u679c\u3067\u3059\u3002<\/P>
\n
\u5b9f\u884c\u6642\u70b9\u304c”2023\/05\/02 23:39:21.188″\u306a\u306e\u3067\u305d\u306e\u7d50\u679c\u304c\u8fd4\u308a\u307e\u3059\u3002<\/P><\/p>\n
\"2023\/05\/02 23:39:21.188\"<\/code><\/div>\n<\/span>YYYY\u5e74MM\u6708DD\u65e5\u5f62\u5f0f\u3067\u51fa\u529b\u3059\u308b<\/span><\/h3>\nYYYY\u5e74MM\u6708DD\u65e5\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u5f62\u5f0f\u3067\u65e5\u4ed8\u3092\u51fa\u529b\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/P>
\n
formatDate()\u95a2\u6570\u3067\u5f15\u6570\u306b\u65e5\u4ed8\u3092\u53d7\u3051\u53d6\u308a\u3001toLocaleDateString()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u5f15\u6570\u3067\u6307\u5b9a\u3055\u308c\u305foptions\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u7528\u3057\u3066\u65e5\u4ed8\u3092\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u3053\u3067\u306f\u3001\u65e5\u672c\u8a9e\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u5408\u308f\u305b\u3066\u3001\u5e74\u3001\u6708\u3001\u65e5\u3092\u542b\u3080\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/P><\/p>\n
<\/span>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/span><\/h4>\nfunction formatDate(date) {\r\n const options = { year: 'numeric', month: 'long', day: 'numeric' };\r\n return date.toLocaleDateString('ja-JP', options);\r\n}\r\n\r\nconst today = new Date();\r\nconst formattedDate = formatDate(today);\r\nconsole.log(formattedDate);<\/code><\/pre>\n<\/span>\u7d50\u679c<\/span><\/h4>\n\u51fa\u529b\u7d50\u679c\u3067\u3059\u3002<\/P>
\n
\u672c\u65e5\u306e\u65e5\u4ed8\u304c\u8fd4\u308a\u307e\u3059\u3002<\/P><\/p>\n
\"2023\u5e745\u67082\u65e5\"<\/code><\/div>\n<\/p>\n
\n
\n
<\/div>\n
\u30bf\u30ab\u30d2\u30ed<\/div>\n<\/div>\n
month: ‘long’\u3092long\u578b\u4ee5\u5916\u306e\u578b\u306b\u5909\u3048\u308b\u3068YYYY\/MM\/DD\u5f62\u5f0f\u306b\u5909\u63db\u3055\u308c\u307e\u3059\u306e\u3067\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002<\/div>\n<\/div>\n
<\/p>\n
<\/span>\u3055\u3044\u3054\u306b<\/span><\/h2>\n\u3044\u304b\u304c\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n
\u4eca\u56de\u306f\u3001<\/p>\n
\u30fbJavaScript\u306eformatDate\u95a2\u6570\u3067\u65e5\u4ed8\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u5909\u63db\u3092\u3059\u308b\u65b9\u6cd5
\n\u30fbYYYY-MM-DD\u3084YYYY\/MM\/DD\u3001YYYY\u5e74MM\u6708DD\u65e5\u306b\u5909\u63db\u3059\u308b\u65b9\u6cd5<\/div>\n
\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n
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JavaScript\u306eformatDate\u95a2\u6570\u3067\u65e5\u4ed8\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u5909\u63db\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u77e5\u308a\u305f\u3044\u3068\u304d\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002 \u3051\u3069\u3001\u305d\u3093\u306a\u4e2d\u3067\u60a9\u3080\u3053\u3068\u306f\u3001 \u30fbJavaScript\u306eformatDate\u95a2\u6570\u3067\u65e5\u4ed8\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u5909\u63db…<\/p>\n","protected":false},"author":1,"featured_media":7389,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[168],"tags":[188],"yoast_head":"\n
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