函数 myYmd（D）{ var pad = function（num） { 变量 s = '0' + 数字; 返回 s.substr（s.length - 2）; } var Result = D.getFullYear（） + '-' + pad（（D.getMonth（） + 1）） + '-' + pad（D.getDate（））; 返回结果; } var datemilli = new Date（'Sun May 11，2014'）; document.write（myYmd（datemilli））;

你可以在Date对象上使用toLocaleDateString('fr-CA')

console.log（new Date（'Sun May 11，2014'）.toLocaleDateString（'fr-CA'））;

我还发现，这些地区给正确的结果从这个地区列表所有地区和他们的短代码列表?

'en-CA'
'fr-CA'
'lt-LT'
'sv-FI'
'sv-SE'

var localesList = ["af-ZA", "am-ET", "ar-AE", "ar-BH", "ar-DZ", "ar-EG", "ar-IQ", "ar-JO", "ar-KW", "ar-LB", "ar-LY", "ar-MA", "arn-CL", "ar-OM", "ar-QA", "ar-SA", "ar-SY", "ar-TN", "ar-YE", "as-IN", "az-Cyrl-AZ", "az-Latn-AZ", "ba-RU", "be-BY", "bg-BG", "bn-BD", "bn-IN", "bo-CN", "br-FR", "bs-Cyrl-BA", "bs-Latn-BA", "ca-ES", "co-FR", "cs-CZ", "cy-GB", "da-DK", "de-AT", "de-CH", "de-DE", "de-LI", "de-LU", "dsb-DE", "dv-MV", "el-GR", "en-029", "en-AU", "en-BZ", "en-CA", "en-GB", "en-IE", "en-IN", "en-JM", "en-MY", "en-NZ", "en-PH", "en-SG", "en-TT", "en-US", "en-ZA", "en-ZW", "es-AR", "es-BO", "es-CL", "es-CO", "es-CR", "es-DO", "es-EC", "es-ES", "es-GT", "es-HN", "es-MX", "es-NI", "es-PA", "es-PE", "es-PR", "es-PY", "es-SV", "es-US", "es-UY", "es-VE", "et-EE", "eu-ES", "fa-IR", "fi-FI", "fil-PH", "fo-FO", "fr-BE", "fr-CA", "fr-CH", "fr-FR", "fr-LU", "fr-MC", "fy-NL", "ga-IE", "gd-GB", "gl-ES", "gsw-FR", "gu-IN", "ha-Latn-NG", "he-IL", "hi-IN", "hr-BA", "hr-HR", "hsb-DE", "hu-HU", "hy-AM", "id-ID", "ig-NG", "ii-CN", "is-IS", "it-CH", "it-IT", "iu-Cans-CA", "iu-Latn-CA", "ja-JP", "ka-GE", "kk-KZ", "kl-GL", "km-KH", "kn-IN", "kok-IN", "ko-KR", "ky-KG", "lb-LU", "lo-LA", "lt-LT", "lv-LV", "mi-NZ", "mk-MK", "ml-IN", "mn-MN", "mn-Mong-CN", "moh-CA", "mr-IN", "ms-BN", "ms-MY", "mt-MT", "nb-NO", "ne-NP", "nl-BE", "nl-NL", "nn-NO", "nso-ZA", "oc-FR", "or-IN", "pa-IN", "pl-PL", "prs-AF", "ps-AF", "pt-BR", "pt-PT", "qut-GT", "quz-BO", "quz-EC", "quz-PE", "rm-CH", "ro-RO", "ru-RU", "rw-RW", "sah-RU", "sa-IN", "se-FI", "se-NO", "se-SE", "si-LK", "sk-SK", "sl-SI", "sma-NO", "sma-SE", "smj-NO", "smj-SE", "smn-FI", "sms-FI", "sq-AL", "sr-Cyrl-BA", "sr-Cyrl-CS", "sr-Cyrl-ME", "sr-Cyrl-RS", "sr-Latn-BA", "sr-Latn-CS", "sr-Latn-ME", "sr-Latn-RS", "sv-FI", "sv-SE", "sw-KE", "syr-SY", "ta-IN", "te-IN", "tg-Cyrl-TJ", "th-TH", "tk-TM", "tn-ZA", "tr-TR", "tt-RU", "tzm-Latn-DZ", "ug-CN", "uk-UA", "ur-PK", "uz-Cyrl-UZ", "uz-Latn-UZ", "vi-VN", "wo-SN", "xh-ZA", "yo-NG", "zh-CN", "zh-HK", "zh-MO", "zh-SG", "zh-TW", "zu-ZA" ]; localesList.forEach(lcl => { if ("2014-05-11" === new Date('Sun May 11,2014').toLocaleDateString(lcl)) { console.log(lcl, new Date('Sun May 11,2014').toLocaleDateString(lcl)); } });

Date.js很适合这个。

require("datejs")
(new Date()).toString("yyyy-MM-dd")

这里有一种方法:

var date = Date.parse('Sun May 11,2014');

function format(date) {
  date = new Date(date);

  var day = ('0' + date.getDate()).slice(-2);
  var month = ('0' + (date.getMonth() + 1)).slice(-2);
  var year = date.getFullYear();

  return year + '-' + month + '-' + day;
}

console.log(format(date));

格式化并从hashmap数据中查找最大值和最小值:

var obj = {"a":'2001-15-01', "b": '2001-12-02' , "c": '2001-1-03'}; function findMaxMinDate(obj){ let formatEncode = (id)=> { let s = id.split('-'); return `${s[0]+'-'+s[2]+'-'+s[1]}`} let formatDecode = (id)=> { let s = id.split('/'); return `${s[2]+'-'+s[0]+'-'+s[1]}`} let arr = Object.keys( obj ).map(( key )=> { return new Date(formatEncode(obj[key])); }); let min = new Date(Math.min.apply(null, arr)).toLocaleDateString(); let max = new Date(Math.max.apply(null, arr)).toLocaleDateString(); return {maxd: `${formatDecode(max)}`, mind:`${formatDecode(min)}`} } console.log(findMaxMinDate(obj));

PHP兼容的日期格式

下面是一个小函数，它可以接受与PHP函数date()相同的参数，并在JavaScript中返回日期/时间字符串。

注意，并不是PHP中的所有date()格式选项都受支持。您可以扩展parts对象来创建缺少的格式令牌

/** * Date formatter with PHP "date()"-compatible format syntax. */ const formatDate = (format, date) => { if (!format) { format = 'Y-m-d' } if (!date) { date = new Date() } const parts = { Y: date.getFullYear().toString(), y: ('00' + (date.getYear() - 100)).toString().slice(-2), m: ('0' + (date.getMonth() + 1)).toString().slice(-2), n: (date.getMonth() + 1).toString(), d: ('0' + date.getDate()).toString().slice(-2), j: date.getDate().toString(), H: ('0' + date.getHours()).toString().slice(-2), G: date.getHours().toString(), i: ('0' + date.getMinutes()).toString().slice(-2), s: ('0' + date.getSeconds()).toString().slice(-2) } const modifiers = Object.keys(parts).join('') const reDate = new RegExp('(?<!\\\\)[' + modifiers + ']', 'g') const reEscape = new RegExp('\\\\([' + modifiers + '])', 'g') return format .replace(reDate, $0 => parts[$0]) .replace(reEscape, ($0, $1) => $1) } // ----- EXAMPLES ----- console.log( formatDate() ); // "2019-05-21" console.log( formatDate('H:i:s') ); // "16:21:32" console.log( formatDate('Y-m-d, o\\n H:i:s') ); // "2019-05-21, on 16:21:32" console.log( formatDate('Y-m-d', new Date(2000000000000)) ); // "2033-05-18"

Gist

以下是formatDate()函数的更新版本和其他示例的要点:https://gist.github.com/stracker-phil/c7b68ea0b1d5bbb97af0a6a3dc66e0d9