blocks|key|1096260|text|这取决于浏览器的toLocaleDateString()实现。例如，在chrome中，您将获得如下内容：Tuesday,+January+DD,+YYYY|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1096261|entityMap^0|8|K|1G|P|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

This depends on the browser's <code>toLocaleDateString()</code> implementation.
For example in chrome you will get something like: <code>Tuesday, January DD, YYYY</code>

blocks|key|1096339|text|没有简单的方法。如果您想要一个可靠的、跨浏览器的解决方案，则必须按区域性构建日期和时间格式字符串的查找表。要格式化日期，请解析相应的格式字符串，从日期中提取相关部分，即日、月、年，并将它们附加在一起。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1096340|这基本上就是微软对其AJAX库所做的事情，如@no的答案所示。|1096341|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

There is no easy way. If you want a reliable, cross-browser solution, you'd have to build a lookup table of date, and time format strings, by culture. To format a date, parse the corresponding format string, extract the relevant parts from the date, i.e. day, month, year, and append them together. 

This is essentially what Microsoft does with their AJAX library, as shown in @no's answer.

blocks|key|1096385|text|function+getLocaleShortDateString(d)
{
++++var+f={"ar-SA":"dd/MM/yy","bg-BG":"dd.M.yyyy","ca-ES":"dd/MM/yyyy","zh-TW":"yyyy/M/d","cs-CZ":"d.M.yyyy","da-DK":"dd-MM-yyyy","de-DE":"dd.MM.yyyy","el-GR":"d/M/yyyy","en-US":"M/d/yyyy","fi-FI":"d.M.yyyy","fr-FR":"dd/MM/yyyy","he-IL":"dd/MM/yyyy","hu-HU":"yyyy.+MM.+dd.","is-IS":"d.M.yyyy","it-IT":"dd/MM/yyyy","ja-JP":"yyyy/MM/dd","ko-KR":"yyyy-MM-dd","nl-NL":"d-M-yyyy","nb-NO":"dd.MM.yyyy","pl-PL":"yyyy-MM-dd","pt-BR":"d/M/yyyy","ro-RO":"dd.MM.yyyy","ru-RU":"dd.MM.yyyy","hr-HR":"d.M.yyyy","sk-SK":"d.+M.+yyyy","sq-AL":"yyyy-MM-dd","sv-SE":"yyyy-MM-dd","th-TH":"d/M/yyyy","tr-TR":"dd.MM.yyyy","ur-PK":"dd/MM/yyyy","id-ID":"dd/MM/yyyy","uk-UA":"dd.MM.yyyy","be-BY":"dd.MM.yyyy","sl-SI":"d.M.yyyy","et-EE":"d.MM.yyyy","lv-LV":"yyyy.MM.dd.","lt-LT":"yyyy.MM.dd","fa-IR":"MM/dd/yyyy","vi-VN":"dd/MM/yyyy","hy-AM":"dd.MM.yyyy","az-Latn-AZ":"dd.MM.yyyy","eu-ES":"yyyy/MM/dd","mk-MK":"dd.MM.yyyy","af-ZA":"yyyy/MM/dd","ka-GE":"dd.MM.yyyy","fo-FO":"dd-MM-yyyy","hi-IN":"dd-MM-yyyy","ms-MY":"dd/MM/yyyy","kk-KZ":"dd.MM.yyyy","ky-KG":"dd.MM.yy","sw-KE":"M/d/yyyy","uz-Latn-UZ":"dd/MM+yyyy","tt-RU":"dd.MM.yyyy","pa-IN":"dd-MM-yy","gu-IN":"dd-MM-yy","ta-IN":"dd-MM-yyyy","te-IN":"dd-MM-yy","kn-IN":"dd-MM-yy","mr-IN":"dd-MM-yyyy","sa-IN":"dd-MM-yyyy","mn-MN":"yy.MM.dd","gl-ES":"dd/MM/yy","kok-IN":"dd-MM-yyyy","syr-SY":"dd/MM/yyyy","dv-MV":"dd/MM/yy","ar-IQ":"dd/MM/yyyy","zh-CN":"yyyy/M/d","de-CH":"dd.MM.yyyy","en-GB":"dd/MM/yyyy","es-MX":"dd/MM/yyyy","fr-BE":"d/MM/yyyy","it-CH":"dd.MM.yyyy","nl-BE":"d/MM/yyyy","nn-NO":"dd.MM.yyyy","pt-PT":"dd-MM-yyyy","sr-Latn-CS":"d.M.yyyy","sv-FI":"d.M.yyyy","az-Cyrl-AZ":"dd.MM.yyyy","ms-BN":"dd/MM/yyyy","uz-Cyrl-UZ":"dd.MM.yyyy","ar-EG":"dd/MM/yyyy","zh-HK":"d/M/yyyy","de-AT":"dd.MM.yyyy","en-AU":"d/MM/yyyy","es-ES":"dd/MM/yyyy","fr-CA":"yyyy-MM-dd","sr-Cyrl-CS":"d.M.yyyy","ar-LY":"dd/MM/yyyy","zh-SG":"d/M/yyyy","de-LU":"dd.MM.yyyy","en-CA":"dd/MM/yyyy","es-GT":"dd/MM/yyyy","fr-CH":"dd.MM.yyyy","ar-DZ":"dd-MM-yyyy","zh-MO":"d/M/yyyy","de-LI":"dd.MM.yyyy","en-NZ":"d/MM/yyyy","es-CR":"dd/MM/yyyy","fr-LU":"dd/MM/yyyy","ar-MA":"dd-MM-yyyy","en-IE":"dd/MM/yyyy","es-PA":"MM/dd/yyyy","fr-MC":"dd/MM/yyyy","ar-TN":"dd-MM-yyyy","en-ZA":"yyyy/MM/dd","es-DO":"dd/MM/yyyy","ar-OM":"dd/MM/yyyy","en-JM":"dd/MM/yyyy","es-VE":"dd/MM/yyyy","ar-YE":"dd/MM/yyyy","en-029":"MM/dd/yyyy","es-CO":"dd/MM/yyyy","ar-SY":"dd/MM/yyyy","en-BZ":"dd/MM/yyyy","es-PE":"dd/MM/yyyy","ar-JO":"dd/MM/yyyy","en-TT":"dd/MM/yyyy","es-AR":"dd/MM/yyyy","ar-LB":"dd/MM/yyyy","en-ZW":"M/d/yyyy","es-EC":"dd/MM/yyyy","ar-KW":"dd/MM/yyyy","en-PH":"M/d/yyyy","es-CL":"dd-MM-yyyy","ar-AE":"dd/MM/yyyy","es-UY":"dd/MM/yyyy","ar-BH":"dd/MM/yyyy","es-PY":"dd/MM/yyyy","ar-QA":"dd/MM/yyyy","es-BO":"dd/MM/yyyy","es-SV":"dd/MM/yyyy","es-HN":"dd/MM/yyyy","es-NI":"dd/MM/yyyy","es-PR":"dd/MM/yyyy","am-ET":"d/M/yyyy","tzm-Latn-DZ":"dd-MM-yyyy","iu-Latn-CA":"d/MM/yyyy","sma-NO":"dd.MM.yyyy","mn-Mong-CN":"yyyy/M/d","gd-GB":"dd/MM/yyyy","en-MY":"d/M/yyyy","prs-AF":"dd/MM/yy","bn-BD":"dd-MM-yy","wo-SN":"dd/MM/yyyy","rw-RW":"M/d/yyyy","qut-GT":"dd/MM/yyyy","sah-RU":"MM.dd.yyyy","gsw-FR":"dd/MM/yyyy","co-FR":"dd/MM/yyyy","oc-FR":"dd/MM/yyyy","mi-NZ":"dd/MM/yyyy","ga-IE":"dd/MM/yyyy","se-SE":"yyyy-MM-dd","br-FR":"dd/MM/yyyy","smn-FI":"d.M.yyyy","moh-CA":"M/d/yyyy","arn-CL":"dd-MM-yyyy","ii-CN":"yyyy/M/d","dsb-DE":"d.+M.+yyyy","ig-NG":"d/M/yyyy","kl-GL":"dd-MM-yyyy","lb-LU":"dd/MM/yyyy","ba-RU":"dd.MM.yy","nso-ZA":"yyyy/MM/dd","quz-BO":"dd/MM/yyyy","yo-NG":"d/M/yyyy","ha-Latn-NG":"d/M/yyyy","fil-PH":"M/d/yyyy","ps-AF":"dd/MM/yy","fy-NL":"d-M-yyyy","ne-NP":"M/d/yyyy","se-NO":"dd.MM.yyyy","iu-Cans-CA":"d/M/yyyy","sr-Latn-RS":"d.M.yyyy","si-LK":"yyyy-MM-dd","sr-Cyrl-RS":"d.M.yyyy","lo-LA":"dd/MM/yyyy","km-KH":"yyyy-MM-dd","cy-GB":"dd/MM/yyyy","bo-CN":"yyyy/M/d","sms-FI":"d.M.yyyy","as-IN":"dd-MM-yyyy","ml-IN":"dd-MM-yy","en-IN":"dd-MM-yyyy","or-IN":"dd-MM-yy","bn-IN":"dd-MM-yy","tk-TM":"dd.MM.yy","bs-Latn-BA":"d.M.yyyy","mt-MT":"dd/MM/yyyy","sr-Cyrl-ME":"d.M.yyyy","se-FI":"d.M.yyyy","zu-ZA":"yyyy/MM/dd","xh-ZA":"yyyy/MM/dd","tn-ZA":"yyyy/MM/dd","hsb-DE":"d.+M.+yyyy","bs-Cyrl-BA":"d.M.yyyy","tg-Cyrl-TJ":"dd.MM.yy","sr-Latn-BA":"d.M.yyyy","smj-NO":"dd.MM.yyyy","rm-CH":"dd/MM/yyyy","smj-SE":"yyyy-MM-dd","quz-EC":"dd/MM/yyyy","quz-PE":"dd/MM/yyyy","hr-BA":"d.M.yyyy.","sr-Latn-ME":"d.M.yyyy","sma-SE":"yyyy-MM-dd","en-SG":"d/M/yyyy","ug-CN":"yyyy-M-d","sr-Cyrl-BA":"d.M.yyyy","es-US":"M/d/yyyy"};

++++var+l=navigator.language?navigator.language:navigator['userLanguage'],y=d.getFullYear(),m=d.getMonth()%2B1,d=d.getDate();
++++f=(l+in+f)?f[l]:"MM/dd/yyyy";
++++function+z(s){s=''%2Bs;return+s.length>1?s:'0'%2Bs;}
++++f=f.replace(/yyyy/,y);f=f.replace(/yy/,String(y).substr(2));
++++f=f.replace(/MM/,z(m));f=f.replace(/M/,m);
++++f=f.replace(/dd/,z(d));f=f.replace(/d/,d);
++++return+f;
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1096386|使用：|unstyled|1096387|shortedDate=getLocaleShortDateString(new+Date(1992,+0,+7));|1096388|​|1096389|shortedDate+=+getLocaleShortDateString(new+Date(1992,+0,+7));
console.log(shortedDate);

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

++var+l+=+navigator.language+?+navigator.language+:+navigator['userLanguage'],
++++y+=+d.getFullYear(),
++++m+=+d.getMonth()+%2B+1,
++++d+=+d.getDate();
++f+=+(l+in+f)+?+f[l]+:+"MM/dd/yyyy";

++function+z(s)+{
++++s+=+''+%2B+s;
++++return+s.length+>+1+?+s+:+'0'+%2B+s;
++}
++f+=+f.replace(/yyyy/,+y);
++f+=+f.replace(/yy/,+String(y).substr(2));
++f+=+f.replace(/MM/,+z(m));
++f+=+f.replace(/M/,+m);
++f+=+f.replace(/dd/,+z(d));
++f+=+f.replace(/d/,+d);
++return+f;
}|1096390|1096391|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|R|8|@]|9|@]|A|$B|C]]|$1|I|3|J|5|F|7|S|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|T|8|@]|9|@]|A|$B|C]]|$1|M|3|J|5|F|7|U|8|@]|9|@]|A|$]]|$1|N|3|-4|5|F|7|V|8|@]|9|@]|A|$]]]|O|$]]

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

 var l=navigator.language?navigator.language:navigator['userLanguage'],y=d.getFullYear(),m=d.getMonth()+1,d=d.getDate();
 f=(l in f)?f[l]:"MM/dd/yyyy";
 function z(s){s=''+s;return s.length&gt;1?s:'0'+s;}
 f=f.replace(/yyyy/,y);f=f.replace(/yy/,String(y).substr(2));
 f=f.replace(/MM/,z(m));f=f.replace(/M/,m);
 f=f.replace(/dd/,z(d));f=f.replace(/d/,d);
 return f;
}
</code></pre>

using:

<pre><code>shortedDate=getLocaleShortDateString(new Date(1992, 0, 7));
</code></pre>

<div class="snippet" data-lang="js" data-hide="true" data-console="true" data-babel="false">
<div class="snippet-code snippet-currently-hidden">
<pre class="snippet-code-js lang-js prettyprint-override"><code>shortedDate = getLocaleShortDateString(new Date(1992, 0, 7));
console.log(shortedDate);

function getLocaleShortDateString(d) {
 var f={"ar-SA":"dd/MM/yy","bg-BG":"dd.M.yyyy","ca-ES":"dd/MM/yyyy","zh-TW":"yyyy/M/d","cs-CZ":"d.M.yyyy","da-DK":"dd-MM-yyyy","de-DE":"dd.MM.yyyy","el-GR":"d/M/yyyy","en-US":"M/d/yyyy","fi-FI":"d.M.yyyy","fr-FR":"dd/MM/yyyy","he-IL":"dd/MM/yyyy","hu-HU":"yyyy. MM. dd.","is-IS":"d.M.yyyy","it-IT":"dd/MM/yyyy","ja-JP":"yyyy/MM/dd","ko-KR":"yyyy-MM-dd","nl-NL":"d-M-yyyy","nb-NO":"dd.MM.yyyy","pl-PL":"yyyy-MM-dd","pt-BR":"d/M/yyyy","ro-RO":"dd.MM.yyyy","ru-RU":"dd.MM.yyyy","hr-HR":"d.M.yyyy","sk-SK":"d. M. yyyy","sq-AL":"yyyy-MM-dd","sv-SE":"yyyy-MM-dd","th-TH":"d/M/yyyy","tr-TR":"dd.MM.yyyy","ur-PK":"dd/MM/yyyy","id-ID":"dd/MM/yyyy","uk-UA":"dd.MM.yyyy","be-BY":"dd.MM.yyyy","sl-SI":"d.M.yyyy","et-EE":"d.MM.yyyy","lv-LV":"yyyy.MM.dd.","lt-LT":"yyyy.MM.dd","fa-IR":"MM/dd/yyyy","vi-VN":"dd/MM/yyyy","hy-AM":"dd.MM.yyyy","az-Latn-AZ":"dd.MM.yyyy","eu-ES":"yyyy/MM/dd","mk-MK":"dd.MM.yyyy","af-ZA":"yyyy/MM/dd","ka-GE":"dd.MM.yyyy","fo-FO":"dd-MM-yyyy","hi-IN":"dd-MM-yyyy","ms-MY":"dd/MM/yyyy","kk-KZ":"dd.MM.yyyy","ky-KG":"dd.MM.yy","sw-KE":"M/d/yyyy","uz-Latn-UZ":"dd/MM yyyy","tt-RU":"dd.MM.yyyy","pa-IN":"dd-MM-yy","gu-IN":"dd-MM-yy","ta-IN":"dd-MM-yyyy","te-IN":"dd-MM-yy","kn-IN":"dd-MM-yy","mr-IN":"dd-MM-yyyy","sa-IN":"dd-MM-yyyy","mn-MN":"yy.MM.dd","gl-ES":"dd/MM/yy","kok-IN":"dd-MM-yyyy","syr-SY":"dd/MM/yyyy","dv-MV":"dd/MM/yy","ar-IQ":"dd/MM/yyyy","zh-CN":"yyyy/M/d","de-CH":"dd.MM.yyyy","en-GB":"dd/MM/yyyy","es-MX":"dd/MM/yyyy","fr-BE":"d/MM/yyyy","it-CH":"dd.MM.yyyy","nl-BE":"d/MM/yyyy","nn-NO":"dd.MM.yyyy","pt-PT":"dd-MM-yyyy","sr-Latn-CS":"d.M.yyyy","sv-FI":"d.M.yyyy","az-Cyrl-AZ":"dd.MM.yyyy","ms-BN":"dd/MM/yyyy","uz-Cyrl-UZ":"dd.MM.yyyy","ar-EG":"dd/MM/yyyy","zh-HK":"d/M/yyyy","de-AT":"dd.MM.yyyy","en-AU":"d/MM/yyyy","es-ES":"dd/MM/yyyy","fr-CA":"yyyy-MM-dd","sr-Cyrl-CS":"d.M.yyyy","ar-LY":"dd/MM/yyyy","zh-SG":"d/M/yyyy","de-LU":"dd.MM.yyyy","en-CA":"dd/MM/yyyy","es-GT":"dd/MM/yyyy","fr-CH":"dd.MM.yyyy","ar-DZ":"dd-MM-yyyy","zh-MO":"d/M/yyyy","de-LI":"dd.MM.yyyy","en-NZ":"d/MM/yyyy","es-CR":"dd/MM/yyyy","fr-LU":"dd/MM/yyyy","ar-MA":"dd-MM-yyyy","en-IE":"dd/MM/yyyy","es-PA":"MM/dd/yyyy","fr-MC":"dd/MM/yyyy","ar-TN":"dd-MM-yyyy","en-ZA":"yyyy/MM/dd","es-DO":"dd/MM/yyyy","ar-OM":"dd/MM/yyyy","en-JM":"dd/MM/yyyy","es-VE":"dd/MM/yyyy","ar-YE":"dd/MM/yyyy","en-029":"MM/dd/yyyy","es-CO":"dd/MM/yyyy","ar-SY":"dd/MM/yyyy","en-BZ":"dd/MM/yyyy","es-PE":"dd/MM/yyyy","ar-JO":"dd/MM/yyyy","en-TT":"dd/MM/yyyy","es-AR":"dd/MM/yyyy","ar-LB":"dd/MM/yyyy","en-ZW":"M/d/yyyy","es-EC":"dd/MM/yyyy","ar-KW":"dd/MM/yyyy","en-PH":"M/d/yyyy","es-CL":"dd-MM-yyyy","ar-AE":"dd/MM/yyyy","es-UY":"dd/MM/yyyy","ar-BH":"dd/MM/yyyy","es-PY":"dd/MM/yyyy","ar-QA":"dd/MM/yyyy","es-BO":"dd/MM/yyyy","es-SV":"dd/MM/yyyy","es-HN":"dd/MM/yyyy","es-NI":"dd/MM/yyyy","es-PR":"dd/MM/yyyy","am-ET":"d/M/yyyy","tzm-Latn-DZ":"dd-MM-yyyy","iu-Latn-CA":"d/MM/yyyy","sma-NO":"dd.MM.yyyy","mn-Mong-CN":"yyyy/M/d","gd-GB":"dd/MM/yyyy","en-MY":"d/M/yyyy","prs-AF":"dd/MM/yy","bn-BD":"dd-MM-yy","wo-SN":"dd/MM/yyyy","rw-RW":"M/d/yyyy","qut-GT":"dd/MM/yyyy","sah-RU":"MM.dd.yyyy","gsw-FR":"dd/MM/yyyy","co-FR":"dd/MM/yyyy","oc-FR":"dd/MM/yyyy","mi-NZ":"dd/MM/yyyy","ga-IE":"dd/MM/yyyy","se-SE":"yyyy-MM-dd","br-FR":"dd/MM/yyyy","smn-FI":"d.M.yyyy","moh-CA":"M/d/yyyy","arn-CL":"dd-MM-yyyy","ii-CN":"yyyy/M/d","dsb-DE":"d. M. yyyy","ig-NG":"d/M/yyyy","kl-GL":"dd-MM-yyyy","lb-LU":"dd/MM/yyyy","ba-RU":"dd.MM.yy","nso-ZA":"yyyy/MM/dd","quz-BO":"dd/MM/yyyy","yo-NG":"d/M/yyyy","ha-Latn-NG":"d/M/yyyy","fil-PH":"M/d/yyyy","ps-AF":"dd/MM/yy","fy-NL":"d-M-yyyy","ne-NP":"M/d/yyyy","se-NO":"dd.MM.yyyy","iu-Cans-CA":"d/M/yyyy","sr-Latn-RS":"d.M.yyyy","si-LK":"yyyy-MM-dd","sr-Cyrl-RS":"d.M.yyyy","lo-LA":"dd/MM/yyyy","km-KH":"yyyy-MM-dd","cy-GB":"dd/MM/yyyy","bo-CN":"yyyy/M/d","sms-FI":"d.M.yyyy","as-IN":"dd-MM-yyyy","ml-IN":"dd-MM-yy","en-IN":"dd-MM-yyyy","or-IN":"dd-MM-yy","bn-IN":"dd-MM-yy","tk-TM":"dd.MM.yy","bs-Latn-BA":"d.M.yyyy","mt-MT":"dd/MM/yyyy","sr-Cyrl-ME":"d.M.yyyy","se-FI":"d.M.yyyy","zu-ZA":"yyyy/MM/dd","xh-ZA":"yyyy/MM/dd","tn-ZA":"yyyy/MM/dd","hsb-DE":"d. M. yyyy","bs-Cyrl-BA":"d.M.yyyy","tg-Cyrl-TJ":"dd.MM.yy","sr-Latn-BA":"d.M.yyyy","smj-NO":"dd.MM.yyyy","rm-CH":"dd/MM/yyyy","smj-SE":"yyyy-MM-dd","quz-EC":"dd/MM/yyyy","quz-PE":"dd/MM/yyyy","hr-BA":"d.M.yyyy.","sr-Latn-ME":"d.M.yyyy","sma-SE":"yyyy-MM-dd","en-SG":"d/M/yyyy","ug-CN":"yyyy-M-d","sr-Cyrl-BA":"d.M.yyyy","es-US":"M/d/yyyy"};

 var l = navigator.language ? navigator.language : navigator['userLanguage'],
 y = d.getFullYear(),
 m = d.getMonth() + 1,
 d = d.getDate();
 f = (l in f) ? f[l] : "MM/dd/yyyy";

 function z(s) {
 s = '' + s;
 return s.length &gt; 1 ? s : '0' + s;
 }
 f = f.replace(/yyyy/, y);
 f = f.replace(/yy/, String(y).substr(2));
 f = f.replace(/MM/, z(m));
 f = f.replace(/M/, m);
 f = f.replace(/dd/, z(d));
 f = f.replace(/d/, d);
 return f;
}</code></pre>
</div>
</div>

blocks|key|1096501|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1096502|new+Date().toLocaleFormat("%25x");|code-block|syntax|javascript|1096503|这个函数的所有格式都可以在这里找到：http://pubs.opengroup.org/onlinepubs/007908799/xsh/strftime.html|offset|length|1096504|entityMap|0|LINK|mutability|MUTABLE|url|http://pubs.opengroup.org/onlinepubs/007908799/xsh/strftime.html^0|0|0|I|1S|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

Try this:

<pre><code>new Date().toLocaleFormat("%x");
</code></pre>

All formats for this function can be found here:
<a href="http://pubs.opengroup.org/onlinepubs/007908799/xsh/strftime.html" rel="nofollow">http://pubs.opengroup.org/onlinepubs/007908799/xsh/strftime.html</a>

blocks|key|1311632|text|​|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1311633|function+getLocaleDateString()+{
++const+formats+=+{
++++"af-ZA":+"yyyy/MM/dd",
++++"am-ET":+"d/M/yyyy",
++++"ar-AE":+"dd/MM/yyyy",
++++"ar-BH":+"dd/MM/yyyy",
++++"ar-DZ":+"dd-MM-yyyy",
++++"ar-EG":+"dd/MM/yyyy",
++++"ar-IQ":+"dd/MM/yyyy",
++++"ar-JO":+"dd/MM/yyyy",
++++"ar-KW":+"dd/MM/yyyy",
++++"ar-LB":+"dd/MM/yyyy",
++++"ar-LY":+"dd/MM/yyyy",
++++"ar-MA":+"dd-MM-yyyy",
++++"ar-OM":+"dd/MM/yyyy",
++++"ar-QA":+"dd/MM/yyyy",
++++"ar-SA":+"dd/MM/yy",
++++"ar-SY":+"dd/MM/yyyy",
++++"ar-TN":+"dd-MM-yyyy",
++++"ar-YE":+"dd/MM/yyyy",
++++"arn-CL":+"dd-MM-yyyy",
++++"as-IN":+"dd-MM-yyyy",
++++"az-Cyrl-AZ":+"dd.MM.yyyy",
++++"az-Latn-AZ":+"dd.MM.yyyy",
++++"ba-RU":+"dd.MM.yy",
++++"be-BY":+"dd.MM.yyyy",
++++"bg-BG":+"dd.M.yyyy",
++++"bn-BD":+"dd-MM-yy",
++++"bn-IN":+"dd-MM-yy",
++++"bo-CN":+"yyyy/M/d",
++++"br-FR":+"dd/MM/yyyy",
++++"bs-Cyrl-BA":+"d.M.yyyy",
++++"bs-Latn-BA":+"d.M.yyyy",
++++"ca-ES":+"dd/MM/yyyy",
++++"co-FR":+"dd/MM/yyyy",
++++"cs-CZ":+"d.M.yyyy",
++++"cy-GB":+"dd/MM/yyyy",
++++"da-DK":+"dd-MM-yyyy",
++++"de-AT":+"dd.MM.yyyy",
++++"de-CH":+"dd.MM.yyyy",
++++"de-DE":+"dd.MM.yyyy",
++++"de-LI":+"dd.MM.yyyy",
++++"de-LU":+"dd.MM.yyyy",
++++"dsb-DE":+"d.+M.+yyyy",
++++"dv-MV":+"dd/MM/yy",
++++"el-GR":+"d/M/yyyy",
++++"en-029":+"MM/dd/yyyy",
++++"en-AU":+"d/MM/yyyy",
++++"en-BZ":+"dd/MM/yyyy",
++++"en-CA":+"dd/MM/yyyy",
++++"en-GB":+"dd/MM/yyyy",
++++"en-IE":+"dd/MM/yyyy",
++++"en-IN":+"dd-MM-yyyy",
++++"en-JM":+"dd/MM/yyyy",
++++"en-MY":+"d/M/yyyy",
++++"en-NZ":+"d/MM/yyyy",
++++"en-PH":+"M/d/yyyy",
++++"en-SG":+"d/M/yyyy",
++++"en-TT":+"dd/MM/yyyy",
++++"en-US":+"M/d/yyyy",
++++"en-ZA":+"yyyy/MM/dd",
++++"en-ZW":+"M/d/yyyy",
++++"es-AR":+"dd/MM/yyyy",
++++"es-BO":+"dd/MM/yyyy",
++++"es-CL":+"dd-MM-yyyy",
++++"es-CO":+"dd/MM/yyyy",
++++"es-CR":+"dd/MM/yyyy",
++++"es-DO":+"dd/MM/yyyy",
++++"es-EC":+"dd/MM/yyyy",
++++"es-ES":+"dd/MM/yyyy",
++++"es-GT":+"dd/MM/yyyy",
++++"es-HN":+"dd/MM/yyyy",
++++"es-MX":+"dd/MM/yyyy",
++++"es-NI":+"dd/MM/yyyy",
++++"es-PA":+"MM/dd/yyyy",
++++"es-PE":+"dd/MM/yyyy",
++++"es-PR":+"dd/MM/yyyy",
++++"es-PY":+"dd/MM/yyyy",
++++"es-SV":+"dd/MM/yyyy",
++++"es-US":+"M/d/yyyy",
++++"es-UY":+"dd/MM/yyyy",
++++"es-VE":+"dd/MM/yyyy",
++++"et-EE":+"d.MM.yyyy",
++++"eu-ES":+"yyyy/MM/dd",
++++"fa-IR":+"MM/dd/yyyy",
++++"fi-FI":+"d.M.yyyy",
++++"fil-PH":+"M/d/yyyy",
++++"fo-FO":+"dd-MM-yyyy",
++++"fr-BE":+"d/MM/yyyy",
++++"fr-CA":+"yyyy-MM-dd",
++++"fr-CH":+"dd.MM.yyyy",
++++"fr-FR":+"dd/MM/yyyy",
++++"fr-LU":+"dd/MM/yyyy",
++++"fr-MC":+"dd/MM/yyyy",
++++"fy-NL":+"d-M-yyyy",
++++"ga-IE":+"dd/MM/yyyy",
++++"gd-GB":+"dd/MM/yyyy",
++++"gl-ES":+"dd/MM/yy",
++++"gsw-FR":+"dd/MM/yyyy",
++++"gu-IN":+"dd-MM-yy",
++++"ha-Latn-NG":+"d/M/yyyy",
++++"he-IL":+"dd/MM/yyyy",
++++"hi-IN":+"dd-MM-yyyy",
++++"hr-BA":+"d.M.yyyy.",
++++"hr-HR":+"d.M.yyyy",
++++"hsb-DE":+"d.+M.+yyyy",
++++"hu-HU":+"yyyy.+MM.+dd.",
++++"hy-AM":+"dd.MM.yyyy",
++++"id-ID":+"dd/MM/yyyy",
++++"ig-NG":+"d/M/yyyy",
++++"ii-CN":+"yyyy/M/d",
++++"is-IS":+"d.M.yyyy",
++++"it-CH":+"dd.MM.yyyy",
++++"it-IT":+"dd/MM/yyyy",
++++"iu-Cans-CA":+"d/M/yyyy",
++++"iu-Latn-CA":+"d/MM/yyyy",
++++"ja-JP":+"yyyy/MM/dd",
++++"ka-GE":+"dd.MM.yyyy",
++++"kk-KZ":+"dd.MM.yyyy",
++++"kl-GL":+"dd-MM-yyyy",
++++"km-KH":+"yyyy-MM-dd",
++++"kn-IN":+"dd-MM-yy",
++++"ko-KR":+"yyyy.+MM.+dd",
++++"kok-IN":+"dd-MM-yyyy",
++++"ky-KG":+"dd.MM.yy",
++++"lb-LU":+"dd/MM/yyyy",
++++"lo-LA":+"dd/MM/yyyy",
++++"lt-LT":+"yyyy.MM.dd",
++++"lv-LV":+"yyyy.MM.dd.",
++++"mi-NZ":+"dd/MM/yyyy",
++++"mk-MK":+"dd.MM.yyyy",
++++"ml-IN":+"dd-MM-yy",
++++"mn-MN":+"yy.MM.dd",
++++"mn-Mong-CN":+"yyyy/M/d",
++++"moh-CA":+"M/d/yyyy",
++++"mr-IN":+"dd-MM-yyyy",
++++"ms-BN":+"dd/MM/yyyy",
++++"ms-MY":+"dd/MM/yyyy",
++++"mt-MT":+"dd/MM/yyyy",
++++"nb-NO":+"dd.MM.yyyy",
++++"ne-NP":+"M/d/yyyy",
++++"nl-BE":+"d/MM/yyyy",
++++"nl-NL":+"d-M-yyyy",
++++"nn-NO":+"dd.MM.yyyy",
++++"nso-ZA":+"yyyy/MM/dd",
++++"oc-FR":+"dd/MM/yyyy",
++++"or-IN":+"dd-MM-yy",
++++"pa-IN":+"dd-MM-yy",
++++"pl-PL":+"dd.MM.yyyy",
++++"prs-AF":+"dd/MM/yy",
++++"ps-AF":+"dd/MM/yy",
++++"pt-BR":+"d/M/yyyy",
++++"pt-PT":+"dd-MM-yyyy",
++++"qut-GT":+"dd/MM/yyyy",
++++"quz-BO":+"dd/MM/yyyy",
++++"quz-EC":+"dd/MM/yyyy",
++++"quz-PE":+"dd/MM/yyyy",
++++"rm-CH":+"dd/MM/yyyy",
++++"ro-RO":+"dd.MM.yyyy",
++++"ru-RU":+"dd.MM.yyyy",
++++"rw-RW":+"M/d/yyyy",
++++"sa-IN":+"dd-MM-yyyy",
++++"sah-RU":+"MM.dd.yyyy",
++++"se-FI":+"d.M.yyyy",
++++"se-NO":+"dd.MM.yyyy",
++++"se-SE":+"yyyy-MM-dd",
++++"si-LK":+"yyyy-MM-dd",
++++"sk-SK":+"d.+M.+yyyy",
++++"sl-SI":+"d.M.yyyy",
++++"sma-NO":+"dd.MM.yyyy",
++++"sma-SE":+"yyyy-MM-dd",
++++"smj-NO":+"dd.MM.yyyy",
++++"smj-SE":+"yyyy-MM-dd",
++++"smn-FI":+"d.M.yyyy",
++++"sms-FI":+"d.M.yyyy",
++++"sq-AL":+"yyyy-MM-dd",
++++"sr-Cyrl-BA":+"d.M.yyyy",
++++"sr-Cyrl-CS":+"d.M.yyyy",
++++"sr-Cyrl-ME":+"d.M.yyyy",
++++"sr-Cyrl-RS":+"d.M.yyyy",
++++"sr-Latn-BA":+"d.M.yyyy",
++++"sr-Latn-CS":+"d.M.yyyy",
++++"sr-Latn-ME":+"d.M.yyyy",
++++"sr-Latn-RS":+"d.M.yyyy",
++++"sv-FI":+"d.M.yyyy",
++++"sv-SE":+"yyyy-MM-dd",
++++"sw-KE":+"M/d/yyyy",
++++"syr-SY":+"dd/MM/yyyy",
++++"ta-IN":+"dd-MM-yyyy",
++++"te-IN":+"dd-MM-yy",
++++"tg-Cyrl-TJ":+"dd.MM.yy",
++++"th-TH":+"d/M/yyyy",
++++"tk-TM":+"dd.MM.yy",
++++"tn-ZA":+"yyyy/MM/dd",
++++"tr-TR":+"dd.MM.yyyy",
++++"tt-RU":+"dd.MM.yyyy",
++++"tzm-Latn-DZ":+"dd-MM-yyyy",
++++"ug-CN":+"yyyy-M-d",
++++"uk-UA":+"dd.MM.yyyy",
++++"ur-PK":+"dd/MM/yyyy",
++++"uz-Cyrl-UZ":+"dd.MM.yyyy",
++++"uz-Latn-UZ":+"dd/MM+yyyy",
++++"vi-VN":+"dd/MM/yyyy",
++++"wo-SN":+"dd/MM/yyyy",
++++"xh-ZA":+"yyyy/MM/dd",
++++"yo-NG":+"d/M/yyyy",
++++"zh-CN":+"yyyy/M/d",
++++"zh-HK":+"d/M/yyyy",
++++"zh-MO":+"d/M/yyyy",
++++"zh-SG":+"d/M/yyyy",
++++"zh-TW":+"yyyy/M/d",
++++"zu-ZA":+"yyyy/MM/dd",
++};

++return+formats[navigator.language]+%7C%7C+"dd/MM/yyyy";
}
console.log(navigator.language,getLocaleDateString());|code-block|syntax|javascript|1311634|1311635|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|K|8|@]|9|@]|A|$E|F]]|$1|G|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|M|8|@]|9|@]|A|$]]]|I|$]]

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

 return formats[navigator.language] || "dd/MM/yyyy";
}
console.log(navigator.language,getLocaleDateString());</code></pre>
</div>
</div>

blocks|key|1311687|text|我认为这是最好的方法...|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1311688|​|1311689|++++var+date+=+new+Date();

++++var+options+=+{
++++++++weekday:+"short",
++++++++year:+"numeric",
++++++++month:+"2-digit",
++++++++day:+"numeric"
++++};

console.log(
++++date.toLocaleDateString("en",+options)+//en+is+language+option,+you+may+specify..
);|code-block|syntax|javascript|1311690|1311691|更多选项和它们的例子...|1311692|Option++++++++++Values++++++++++Sample+output
----------------------------------------------------
weekday+++++++++'narrow'++++++++'M'
++++++++++++++++'short'+++++++++'Mon'
++++++++++++++++'long'++++++++++'Monday'

year++++++++++++'2-digit'+++++++'01'
++++++++++++++++'numeric'+++++++'2001'

month+++++++++++'2-digit'+++++++'01'
++++++++++++++++'numeric'+++++++'1'
++++++++++++++++'narrow'++++++++'J'
++++++++++++++++'short'+++++++++'Jan'
++++++++++++++++'long'++++++++++'January'

day+++++++++++++'2-digit'+++++++'01'
++++++++++++++++'numeric'+++++++'1'

hour++++++++++++'2-digit'+++++++'12+AM'
++++++++++++++++'numeric'+++++++'12+AM'

minute++++++++++'2-digit'+++++++'0'
++++++++++++++++'numeric'+++++++'0'

second++++++++++'2-digit'+++++++'0'
++++++++++++++++'numeric'+++++++'0'

timeZoneName++++'short'+++++++++'1/1/2001+GMT%2B00:00'
++++++++++++++++'long'++++++++++'1/1/2001+GMT%2B00:00'|1311693|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|R|8|@]|9|@]|A|$G|H]]|$1|I|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|T|8|@]|9|@]|A|$]]|$1|L|3|M|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|N|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|O|$]]

I think this is the best way to do it...
<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code> var date = new Date();

 var options = {
 weekday: "short",
 year: "numeric",
 month: "2-digit",
 day: "numeric"
 };

console.log(
 date.toLocaleDateString("en", options) //en is language option, you may specify..
);</code></pre>
</div>
</div>

More Options and their examples....
<pre><code>Option Values Sample output
----------------------------------------------------
weekday 'narrow' 'M'
 'short' 'Mon'
 'long' 'Monday'

year '2-digit' '01'
 'numeric' '2001'

month '2-digit' '01'
 'numeric' '1'
 'narrow' 'J'
 'short' 'Jan'
 'long' 'January'

day '2-digit' '01'
 'numeric' '1'

hour '2-digit' '12 AM'
 'numeric' '12 AM'

minute '2-digit' '0'
 'numeric' '0'

second '2-digit' '0'
 'numeric' '0'

timeZoneName 'short' '1/1/2001 GMT+00:00'
 'long' '1/1/2001 GMT+00:00'
</code></pre>

blocks|key|1096625|text|对Mitali的反应进行了轻微的修改。为更本地化的解决方案动态生成语言。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1096626|var+lang=+window.navigator.userLanguage+%7C%7C+window.navigator.language;

var+date+=+new+Date();

var+options+=+{
+++weekday:+"short",
+++year:+"numeric",
+++month:+"2-digit",
+++day:+"numeric"
};

date.toLocaleDateString(lang,+options);|code-block|syntax|javascript|1096627|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Slight modification to Mitali's response. To dynamically generate the language for a more localized solution.

<pre><code>var lang= window.navigator.userLanguage || window.navigator.language;

var date = new Date();

var options = {
 weekday: "short",
 year: "numeric",
 month: "2-digit",
 day: "numeric"
};

date.toLocaleDateString(lang, options);
</code></pre>

blocks|key|1311799|text|在寻找一种在所有浏览器中生成本地化但短日期的方法时发现了这个线程，而不需要任何额外的库，只需简单地调用格式化服务器生成的ISO日期。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1311800|我结合了holden321和mwrf的答案。存储函数外部的格式，因为这样更方便；存储当前的语言环境格式，因为它总是有用的。|1311801|该函数可以传递任何可以传递给date构造函数以获得有效日期的内容，还可以传递一种语言或格式以实现灵活性。|1311802|首先，您需要设置格式列表和其他一些内容：|1311803|var+LOCALE_DATE_FORMATS+=+{
++//+as+per+mwrf's+list
++...
}

var+LANG+=+window.navigator.userLanguage+%7C%7C+window.navigator.language;

var+LOCALE_DATE_FORMAT+=+LOCALE_DATE_FORMATS[LANG]+%7C%7C+'dd/MM/yyyy';|code-block|syntax|javascript|1311804|则函数为：|1311805|function+getLocalizedDate(o,+options)
{
++++var+res+=+'';
++++var+date+=+new+Date(o);+++++

++++if(o+!=+null+&&+!isNaN(date)+&&+typeof(date.getFullYear)+==+'function')
++++{
++++++++var+d+=+date.getDate();
++++++++var+dd+=+d+<+10+?+'0'+%2B+d+:+d;
++++++++var+M+=+date.getMonth()+%2B+1;
++++++++var+MM+=+M+<+10+?+'0'+%2B+M+:+M;
++++++++var+yyyy+=+date.getFullYear();
++++++++var+yy+=+new+String(yyyy).substring(2);

++++++++var+format+=+LOCALE_DATE_FORMAT;

++++++++if(options+&&+options.lang)
++++++++++++format+=+LOCALE_DATE_FORMATS[options.lang];
++++++++else+if(options+&&+options.format)
++++++++++++format+=+options.format;

++++++++res+=+format
++++++++++++.replace(/dd/g,+dd)
++++++++++++.replace(/d/g,+d)
++++++++++++.replace(/MM/g,+MM)
++++++++++++.replace(/M/g,+M)
++++++++++++.replace(/yyyy/g,+yyyy)
++++++++++++.replace(/yy/g,+yy);
++++}

++++return+res;
}|1311806|getLocalizedDate('2013-03-01T00:00:00',++{lang:'sk-SK'})+=+1.+3.+2013|offset|length|style|CODE|1311807|EDIT:不带参数的调用，当然是使用用户的语言环境：|1311808|getLocalizedDate('2013-03-01T00:00:00')+=+01/03/2013+(对我来说)|1311809|如果您热衷于扩展原型，那么函数定义的第一行将变成：|1311810|Date.prototype.getLocalized+=+function(options)
{
++var+date+=+this;|1311811|当然是这样调用的：|1311812|new+Date('2013-03-01T00:00:00').getLocalized({lang:'sk-SK'})+=+1.+3.+2013|1311813|编辑:同样，调用不带参数的方法来使用用户的语言环境：|1311814|new+Date('2013-03-01T00:00:00').getLocalized()+=+01/03/2013+(对我来说)|1311815|entityMap^0|0|0|0|0|0|0|0|0|1K|1N|A|0|0|0|13|16|A|0|0|0|0|0|1O|1R|A|0|0|0|1A|1D|A|0^^$0|@$1|2|3|4|5|6|7|1E|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1F|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1G|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|1H|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|1I|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|1J|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|1K|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|1L|8|@$S|1M|T|1N|U|V]|$S|1O|T|1P|U|V]]|9|@]|A|$]]|$1|W|3|X|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1R|8|@$S|1S|T|1T|U|V]|$S|1U|T|1V|U|V]]|9|@]|A|$]]|$1|10|3|11|5|6|7|1W|8|@]|9|@]|A|$]]|$1|12|3|13|5|J|7|1X|8|@]|9|@]|A|$K|L]]|$1|14|3|15|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|16|3|17|5|6|7|1Z|8|@$S|20|T|21|U|V]|$S|22|T|23|U|V]]|9|@]|A|$]]|$1|18|3|19|5|6|7|24|8|@]|9|@]|A|$]]|$1|1A|3|1B|5|6|7|25|8|@$S|26|T|27|U|V]|$S|28|T|29|U|V]]|9|@]|A|$]]|$1|1C|3|-4|5|6|7|2A|8|@]|9|@]|A|$]]]|1D|$]]

Found this thread while looking for a way to generate localized but short dates in all browsers without any extra library, just a simple call to format server generated ISO dates.

I went with a combination of holden321 and mwrf's answers. Storing the formats external to the function because it's handier that way and storing the current locale format because it's always useful.

The function can be passed anything that can be passed to a date constructor to get a valid date, and also a language or format for flexibility.

You need to set up the list of formats and a couple more things first:

<pre><code>var LOCALE_DATE_FORMATS = {
 // as per mwrf's list
 ...
}

var LANG = window.navigator.userLanguage || window.navigator.language;

var LOCALE_DATE_FORMAT = LOCALE_DATE_FORMATS[LANG] || 'dd/MM/yyyy';
</code></pre>

Then the function is:

<pre><code>function getLocalizedDate(o, options)
{
 var res = '';
 var date = new Date(o); 

 if(o != null &amp;&amp; !isNaN(date) &amp;&amp; typeof(date.getFullYear) == 'function')
 {
 var d = date.getDate();
 var dd = d &lt; 10 ? '0' + d : d;
 var M = date.getMonth() + 1;
 var MM = M &lt; 10 ? '0' + M : M;
 var yyyy = date.getFullYear();
 var yy = new String(yyyy).substring(2);

 var format = LOCALE_DATE_FORMAT;

 if(options &amp;&amp; options.lang)
 format = LOCALE_DATE_FORMATS[options.lang];
 else if(options &amp;&amp; options.format)
 format = options.format;

 res = format
 .replace(/dd/g, dd)
 .replace(/d/g, d)
 .replace(/MM/g, MM)
 .replace(/M/g, M)
 .replace(/yyyy/g, yyyy)
 .replace(/yy/g, yy);
 }

 return res;
}
</code></pre>

<code>getLocalizedDate('2013-03-01T00:00:00', {lang:'sk-SK'})</code> = <code>1. 3. 2013</code>

EDIT: Call with no arguments to use the user's locale, of course:

<code>getLocalizedDate('2013-03-01T00:00:00')</code> = <code>01/03/2013</code> (for me)

If you are a fan of extending prototypes, the first lines of the function definition become:

<pre><code>Date.prototype.getLocalized = function(options)
{
 var date = this;
</code></pre>

Called of course like this:

<code>new Date('2013-03-01T00:00:00').getLocalized({lang:'sk-SK'})</code> = <code>1. 3. 2013</code>

EDIT: Again, call with no arguments to use the user's locale:

<code>new Date('2013-03-01T00:00:00').getLocalized()</code> = <code>01/03/2013</code> (for me)

blocks|key|1311827|text|尝试使用Date.CultureInfo.formatPatterns.shortDate|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1311828|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Try to use Date.CultureInfo.formatPatterns.shortDate

blocks|key|1096830|text|我相信你可以用这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1096831|new+Date().toLocaleDateString();|code-block|syntax|javascript|1096832|它可以接受区域设置的参数：|1096833|new+Date().toLocaleDateString("en-us");
new+Date().toLocaleDateString("he-il");|1096834|我看到它是由chrome，IE，edge支持的，尽管结果可能会有所不同，但它对我来说已经很不错了。|1096835|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I believe you can use this one:

<pre><code>new Date().toLocaleDateString();
</code></pre>

Which can accept parameters for the locale:

<pre><code>new Date().toLocaleDateString("en-us");
new Date().toLocaleDateString("he-il");
</code></pre>

I see it is supported by chrome, IE, edge, although results may vary it does a pretty good job for me.

blocks|key|1311970|text|如果您有关于字段的问题，下面是获取已归档value=""属性的脚本：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1311971|(new+Date()).toISOString().split('T')[0]|code-block|syntax|javascript|1311972|您可以使用Intl对象(ecma-402)获取data-date-pattern=""|1311973|(new+Intl.DateTimeFormat()).resolved.pattern+//+"M/d/y"+for+"en-US"+in+Google+Chrome|1311974|最后，格式化当前l10n、data-date=""中的日期|1311975|(new+Intl.DateTimeFormat()).format(new+Date());|1311976|多边形填充：https://github.com/andyearnshaw/Intl.js/issues/129|1311977|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Intl|1|https://ecma-international.org/ecma-402/4.0/index.html#datetimeformat-objects|2|https://github.com/andyearnshaw/Intl.js/issues/129^0|K|8|0|0|N|K|5|4|0|C|8|1|0|0|D|C|0|0|6|1E|2|0^^$0|@$1|2|3|4|5|6|7|16|8|@$9|17|A|18|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|19|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|1A|8|@$9|1B|A|1C|B|C]]|D|@$9|1D|A|1E|1|1F]|$9|1G|A|1H|1|1I]]|E|$]]|$1|M|3|N|5|H|7|1J|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|1K|8|@$9|1L|A|1M|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|H|7|1N|8|@]|D|@]|E|$I|J]]|$1|S|3|T|5|6|7|1O|8|@]|D|@$9|1P|A|1Q|1|1R]]|E|$]]|$1|U|3|-4|5|6|7|1S|8|@]|D|@]|E|$]]]|V|$W|$5|X|Y|Z|E|$10|11]]|12|$5|X|Y|Z|E|$10|13]]|14|$5|X|Y|Z|E|$10|15]]]]

If your question about <a href="http://diveintohtml5.info/forms.html#type-date" rel="noreferrer"><code>&lt;input type="date"&gt;</code></a> field, here is script for getting filed <code>value=""</code> attribute:

<pre><code>(new Date()).toISOString().split('T')[0]
</code></pre>

You can use the <a href="https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Intl" rel="noreferrer">Intl</a> object (<a href="https://ecma-international.org/ecma-402/4.0/index.html#datetimeformat-objects" rel="noreferrer">ecma-402</a>) to get <code>data-date-pattern=""</code>:

<pre><code>(new Intl.DateTimeFormat()).resolved.pattern // "M/d/y" for "en-US" in Google Chrome
</code></pre>

And finnaly, to format date in current l10n, <code>data-date=""</code>:

<pre><code>(new Intl.DateTimeFormat()).format(new Date());
</code></pre>

Polyfill: <a href="https://github.com/andyearnshaw/Intl.js/issues/129" rel="noreferrer">https://github.com/andyearnshaw/Intl.js/issues/129</a>

blocks|key|1312036|text|这样如何：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1312037|//+pass+in+a+localeAbbv+string+to+get+the+format+for+a+specific+locale,
//+otherwise+the+browser's+default+localte+will+be+used
function+getLocaleShortDateFormat(localeAbbv?:+string)+{
++++return+new+Intl.DateTimeFormat(Intl.DateTimeFormat(localeAbbv).resolvedOptions().locale)
++++++++.format(new+Date(2021,+0,+2))
++++++++.replace(/0?1/,+"MM").replace(/0?2/,+"DD").replace(/(?:20)?21/,+"YYYY");
}|code-block|syntax|javascript|1312038|这只是获取一个已知日期(2021年1月2日)，使用当前区域设置对其进行格式化，然后用适当的日期字符串替换已知值(2021=year、1=month、2=day)。|1312039|这使用了符合标准的方法调用，我认为应该可以在所有现代(Ish)浏览器中工作。|1312040|实际上，我认为在格式化日期以显示给用户时，最好使用"-“而不是"/”来分隔日期的各个组成部分。这有两个原因:+1)它提供了更好的UX，因为它更容易辨别组件，因为"-“不像数字那么高，因此日期组件之间的分隔符更突出，2)它更接近ISO+8601格式，在日期组件之间使用破折号。为此，只需向链中添加另一个.replace(/\//g,+"-")即可。|offset|length|style|CODE|1312041|entityMap^0|0|0|0|0|46|K|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|V|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|W|8|@$M|X|N|Y|O|P]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

How about:
<pre class="lang-js prettyprint-override"><code>// pass in a localeAbbv string to get the format for a specific locale,
// otherwise the browser's default localte will be used
function getLocaleShortDateFormat(localeAbbv?: string) {
 return new Intl.DateTimeFormat(Intl.DateTimeFormat(localeAbbv).resolvedOptions().locale)
 .format(new Date(2021, 0, 2))
 .replace(/0?1/, &quot;MM&quot;).replace(/0?2/, &quot;DD&quot;).replace(/(?:20)?21/, &quot;YYYY&quot;);
}
</code></pre>
This is just taking a known date (2 Jan 2021), formatting it using the current locale, and then replacing the known values (2021=year, 1=month, 2=day) with the appropriate date strings.
This uses standards-compliant method calls and I think should work in all modern(ish) browsers.
Actually I think it's better to use &quot;-&quot; instead of &quot;/&quot; for separating the components of the date when formatting dates for displaying to users. Couple of reasons for this: 1) it provides better UX in that it's easier to discern the components because &quot;-&quot; is not as tall as the numbers so the breaks between the date components stand out better, and 2) it's closer to the ISO 8601 format, which uses dashes between the date components. To do this, just add another <code>.replace(/\//g, &quot;-&quot;)</code> to the chain.

blocks|key|1097034|text|以en-CA为例，如果您使用的是date-fns|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1097035|​|1097036|<script+type="module">
++import+{+enCA+}+from+'https://cdn.skypack.dev/date-fns/locale';
++console.log(enCA.formatLong.date({width:'short'}))
++//+yyyy-MM-dd
</script>|code-block|syntax|javascript|1097037|1097038|来源：https://github.com/date-fns/date-fns/blob/master/src/locale/en-CA/_lib/formatLong/index.js|1097039|对于CLDR和Paul爱尔兰：|1097040|import+locale+from+'cldr-dates-modern/main/en-CA/ca-gregorian.json'
console.log(locale.main['en-CA'].dates.calendars.gregorian.dateFormats.short)
//+y-MM-dd|1097041|来源：https://github.com/unicode-cldr/cldr-dates-modern/blob/master/main/en-CA/ca-gregorian.json|1097042|用例:我们使用这个值作为输入的占位符属性。|1097043|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/date-fns/date-fns/blob/master/src/locale/en-CA/_lib/formatLong/index.js|1|https://github.com/unicode-cldr/cldr-dates-modern/blob/master/main/en-CA/ca-gregorian.json^0|G|8|0|0|0|0|3|2I|0|0|0|0|3|2I|1|0|0^^$0|@$1|2|3|4|5|6|7|17|8|@$9|18|A|19|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1A|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|1B|8|@]|D|@]|E|$K|L]]|$1|M|3|G|5|6|7|1C|8|@]|D|@]|E|$]]|$1|N|3|O|5|6|7|1D|8|@]|D|@$9|1E|A|1F|1|1G]]|E|$]]|$1|P|3|Q|5|6|7|1H|8|@]|D|@]|E|$]]|$1|R|3|S|5|J|7|1I|8|@]|D|@]|E|$K|L]]|$1|T|3|U|5|6|7|1J|8|@]|D|@$9|1K|A|1L|1|1M]]|E|$]]|$1|V|3|W|5|6|7|1N|8|@]|D|@]|E|$]]|$1|X|3|-4|5|6|7|1O|8|@]|D|@]|E|$]]]|Y|$Z|$5|10|11|12|E|$13|14]]|15|$5|10|11|12|E|$13|16]]]]

Using en-CA as an example, if you're using <code>date-fns</code>:
<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script type="module"&gt;
 import { enCA } from 'https://cdn.skypack.dev/date-fns/locale';
 console.log(enCA.formatLong.date({width:'short'}))
 // yyyy-MM-dd
&lt;/script&gt;</code></pre>
</div>
</div>

Source: <a href="https://github.com/date-fns/date-fns/blob/master/src/locale/en-CA/_lib/formatLong/index.js" rel="nofollow noreferrer">https://github.com/date-fns/date-fns/blob/master/src/locale/en-CA/_lib/formatLong/index.js</a>
For CLDR &amp; Paul Irish:
<pre><code>import locale from 'cldr-dates-modern/main/en-CA/ca-gregorian.json'
console.log(locale.main['en-CA'].dates.calendars.gregorian.dateFormats.short)
// y-MM-dd
</code></pre>
Source: <a href="https://github.com/unicode-cldr/cldr-dates-modern/blob/master/main/en-CA/ca-gregorian.json" rel="nofollow noreferrer">https://github.com/unicode-cldr/cldr-dates-modern/blob/master/main/en-CA/ca-gregorian.json</a>
Use case: we used this value as the placeholder attribute for an input.

blocks|key|1097098|text|短日期模式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1097099|const+shortDatePatterns+=+{
'aa-DJ':+"dd/MM/yyyy",
'aa-ER':+"dd/MM/yyyy",
'aa-ET':+"dd/MM/yyyy",
'af':+"yyyy-MM-dd",
'af-NA':+"yyyy-MM-dd",
'af-ZA':+"yyyy-MM-dd",
'agq-CM':+"d/M/yyyy",
'ak-GH':+"yyyy/MM/dd",
'am':+"dd/MM/yyyy",
'am-ET':+"dd/MM/yyyy",
'ar':+"dd/MM/yy",
'ar-001':+"d/M/yyyy",
'ar-AE':+"dd/MM/yyyy",
'ar-BH':+"dd/MM/yyyy",
'ar-DJ':+"d/M/yyyy",
'ar-DZ':+"dd-MM-yyyy",
'ar-EG':+"dd/MM/yyyy",
'ar-ER':+"d/M/yyyy",
'ar-IL':+"d/M/yyyy",
'ar-IQ':+"dd/MM/yyyy",
'ar-JO':+"dd/MM/yyyy",
'ar-KM':+"d/M/yyyy",
'ar-KW':+"dd/MM/yyyy",
'ar-LB':+"dd/MM/yyyy",
'ar-LY':+"dd/MM/yyyy",
'ar-MA':+"dd-MM-yyyy",
'ar-MR':+"d/M/yyyy",
'ar-OM':+"dd/MM/yyyy",
'ar-PS':+"d/M/yyyy",
'ar-QA':+"dd/MM/yyyy",
'ar-SA':+"dd/MM/yy",
'ar-SD':+"d/M/yyyy",
'ar-SO':+"d/M/yyyy",
'ar-SS':+"d/M/yyyy",
'ar-SY':+"dd/MM/yyyy",
'ar-TD':+"d/M/yyyy",
'ar-TN':+"dd-MM-yyyy",
'ar-YE':+"dd/MM/yyyy",
'arn-CL':+"dd-MM-yyyy",
'as':+"dd-MM-yyyy",
'as-IN':+"dd-MM-yyyy",
'asa-TZ':+"dd/MM/yyyy",
'ast-ES':+"d/M/yyyy",
'az':+"dd.MM.yyyy",
'az-Cyrl-AZ':+"dd.MM.yyyy",
'az-Latn-AZ':+"dd.MM.yyyy",
'ba':+"dd.MM.yy",
'ba-RU':+"dd.MM.yy",
'bas-CM':+"d/M/yyyy",
'be':+"dd.MM.yy",
'be-BY':+"dd.MM.yy",
'bem-ZM':+"dd/MM/yyyy",
'bez-TZ':+"dd/MM/yyyy",
'bg':+"d.M.yyyy+'г.'",
'bg-BG':+"d.M.yyyy+'г.'",
'bin-NG':+"d/M/yyyy",
'bm':+"d/M/yyyy",
'bm-Latn-ML':+"d/M/yyyy",
'bn':+"d/M/yyyy",
'bn-BD':+"d/M/yyyy",
'bn-IN':+"dd-MM-yy",
'bo':+"yyyy/M/d",
'bo-CN':+"yyyy/M/d",
'bo-IN':+"yyyy-MM-dd",
'br':+"dd/MM/yyyy",
'br-FR':+"dd/MM/yyyy",
'brx-IN':+"M/d/yyyy",
'bs':+"d.M.yyyy.",
'bs-Cyrl-BA':+"d.M.yyyy",
'bs-Latn-BA':+"d.M.yyyy.",
'byn-ER':+"dd/MM/yyyy",
'ca':+"d/M/yyyy",
'ca-AD':+"d/M/yyyy",
'ca-ES':+"d/M/yyyy",
'ca-ES-valencia':+"d/M/yyyy",
'ca-FR':+"d/M/yyyy",
'ca-IT':+"d/M/yyyy",
'ce-RU':+"yyyy-MM-dd",
'cgg-UG':+"dd/MM/yyyy",
'chr-Cher-US':+"M/d/yyyy",
'co':+"dd/MM/yyyy",
'co-FR':+"dd/MM/yyyy",
'cs-CZ':+"dd.MM.yyyy",
'cu':+"yyyy.MM.dd",
'cu-RU':+"yyyy.MM.dd",
'cy':+"dd/MM/yyyy",
'cy-GB':+"dd/MM/yyyy",
'da-DK':+"dd-MM-yyyy",
'da-GL':+"dd/MM/yyyy",
'dav-KE':+"dd/MM/yyyy",
'de':+"dd.MM.yyyy",
'de-AT':+"dd.MM.yyyy",
'de-BE':+"dd.MM.yyyy",
'de-CH':+"dd.MM.yyyy",
'de-DE':+"dd.MM.yyyy",
'de-IT':+"dd.MM.yyyy",
'de-LI':+"dd.MM.yyyy",
'de-LU':+"dd.MM.yyyy",
'dje-NE':+"d/M/yyyy",
'dsb-DE':+"d.+M.+yyyy",
'dua-CM':+"d/M/yyyy",
'dv-MV':+"dd/MM/yy",
'dyo-SN':+"d/M/yyyy",
'dz':+"yyyy-MM-dd",
'dz-BT':+"yyyy-MM-dd",
'ebu-KE':+"dd/MM/yyyy",
'ee':+"M/d/yyyy",
'ee-GH':+"M/d/yyyy",
'ee-TG':+"M/d/yyyy",
'el-CY':+"d/M/yyyy",
'el-GR':+"d/M/yyyy",
'en-001':+"dd/MM/yyyy",
'en-029':+"dd/MM/yyyy",
'en-150':+"dd/MM/yyyy",
'en-AG':+"dd/MM/yyyy",
'en-AI':+"dd/MM/yyyy",
'en-AS':+"M/d/yyyy",
'en-AT':+"dd/MM/yyyy",
'en-AU':+"d/MM/yyyy",
'en-BB':+"dd/MM/yyyy",
'en-BE':+"dd/MM/yyyy",
'en-BI':+"M/d/yyyy",
'en-BM':+"dd/MM/yyyy",
'en-BS':+"dd/MM/yyyy",
'en-BW':+"dd/MM/yyyy",
'en-BZ':+"dd/MM/yyyy",
'en-CA':+"yyyy-MM-dd",
'en-CC':+"dd/MM/yyyy",
'en-CH':+"dd/MM/yyyy",
'en-CK':+"dd/MM/yyyy",
'en-CM':+"dd/MM/yyyy",
'en-CX':+"dd/MM/yyyy",
'en-CY':+"dd/MM/yyyy",
'en-DE':+"dd/MM/yyyy",
'en-DK':+"dd/MM/yyyy",
'en-DM':+"dd/MM/yyyy",
'en-ER':+"dd/MM/yyyy",
'en-FI':+"dd/MM/yyyy",
'en-FJ':+"dd/MM/yyyy",
'en-FK':+"dd/MM/yyyy",
'en-FM':+"dd/MM/yyyy",
'en-GB':+"dd/MM/yyyy",
'en-GD':+"dd/MM/yyyy",
'en-GG':+"dd/MM/yyyy",
'en-GH':+"dd/MM/yyyy",
'en-GI':+"dd/MM/yyyy",
'en-GM':+"dd/MM/yyyy",
'en-GU':+"M/d/yyyy",
'en-GY':+"dd/MM/yyyy",
'en-HK':+"d/M/yyyy",
'en-ID':+"dd/MM/yyyy",
'en-IE':+"dd/MM/yyyy",
'en-IL':+"dd/MM/yyyy",
'en-IM':+"dd/MM/yyyy",
'en-IN':+"dd-MM-yyyy",
'en-IO':+"dd/MM/yyyy",
'en-JE':+"dd/MM/yyyy",
'en-JM':+"d/M/yyyy",
'en-KE':+"dd/MM/yyyy",
'en-KI':+"dd/MM/yyyy",
'en-KN':+"dd/MM/yyyy",
'en-KY':+"dd/MM/yyyy",
'en-LC':+"dd/MM/yyyy",
'en-LR':+"dd/MM/yyyy",
'en-LS':+"dd/MM/yyyy",
'en-MG':+"dd/MM/yyyy",
'en-MH':+"M/d/yyyy",
'en-MO':+"dd/MM/yyyy",
'en-MP':+"M/d/yyyy",
'en-MS':+"dd/MM/yyyy",
'en-MT':+"dd/MM/yyyy",
'en-MU':+"dd/MM/yyyy",
'en-MW':+"dd/MM/yyyy",
'en-MY':+"d/M/yyyy",
'en-NA':+"dd/MM/yyyy",
'en-NF':+"dd/MM/yyyy",
'en-NG':+"dd/MM/yyyy",
'en-NL':+"dd/MM/yyyy",
'en-NR':+"dd/MM/yyyy",
'en-NU':+"dd/MM/yyyy",
'en-NZ':+"d/MM/yyyy",
'en-PG':+"dd/MM/yyyy",
'en-PH':+"dd/MM/yyyy",
'en-PK':+"dd/MM/yyyy",
'en-PN':+"dd/MM/yyyy",
'en-PR':+"M/d/yyyy",
'en-PW':+"dd/MM/yyyy",
'en-RW':+"dd/MM/yyyy",
'en-SB':+"dd/MM/yyyy",
'en-SC':+"dd/MM/yyyy",
'en-SD':+"dd/MM/yyyy",
'en-SE':+"yyyy-MM-dd",
'en-SG':+"d/M/yyyy",
'en-SH':+"dd/MM/yyyy",
'en-SI':+"dd/MM/yyyy",
'en-SL':+"dd/MM/yyyy",
'en-SS':+"dd/MM/yyyy",
'en-SX':+"dd/MM/yyyy",
'en-SZ':+"dd/MM/yyyy",
'en-TC':+"dd/MM/yyyy",
'en-TK':+"dd/MM/yyyy",
'en-TO':+"dd/MM/yyyy",
'en-TT':+"dd/MM/yyyy",
'en-TV':+"dd/MM/yyyy",
'en-TZ':+"dd/MM/yyyy",
'en-UG':+"dd/MM/yyyy",
'en-UM':+"M/d/yyyy",
'en-US':+"M/d/yyyy",
'en-VC':+"dd/MM/yyyy",
'en-VG':+"dd/MM/yyyy",
'en-VI':+"M/d/yyyy",
'en-VU':+"dd/MM/yyyy",
'en-WS':+"dd/MM/yyyy",
'en-ZA':+"yyyy/MM/dd",
'en-ZM':+"dd/MM/yyyy",
'en-ZW':+"d/M/yyyy",
'eo-001':+"yyyy-MM-dd",
'es':+"dd/MM/yyyy",
'es-419':+"d/M/yyyy",
'es-AR':+"d/M/yyyy",
'es-BO':+"d/M/yyyy",
'es-BR':+"d/M/yyyy",
'es-BZ':+"d/M/yyyy",
'es-CL':+"dd-MM-yyyy",
'es-CO':+"d/MM/yyyy",
'es-CR':+"d/M/yyyy",
'es-CU':+"d/M/yyyy",
'es-DO':+"d/M/yyyy",
'es-EC':+"d/M/yyyy",
'es-ES':+"dd/MM/yyyy",
'es-GQ':+"d/M/yyyy",
'es-GT':+"d/MM/yyyy",
'es-HN':+"d/M/yyyy",
'es-MX':+"dd/MM/yyyy",
'es-NI':+"d/M/yyyy",
'es-PA':+"MM/dd/yyyy",
'es-PE':+"d/MM/yyyy",
'es-PH':+"d/M/yyyy",
'es-PR':+"MM/dd/yyyy",
'es-PY':+"d/M/yyyy",
'es-SV':+"d/M/yyyy",
'es-US':+"M/d/yyyy",
'es-UY':+"d/M/yyyy",
'es-VE':+"d/M/yyyy",
'et':+"dd.MM.yyyy",
'et-EE':+"dd.MM.yyyy",
'eu-ES':+"yyyy/M/d",
'ewo-CM':+"d/M/yyyy",
'fa-IR':+"dd/MM/yyyy",
'ff-CM':+"d/M/yyyy",
'ff-GN':+"d/M/yyyy",
'ff-Latn-SN':+"dd/MM/yyyy",
'ff-MR':+"d/M/yyyy",
'ff-NG':+"d/M/yyyy",
'fi':+"d.M.yyyy",
'fi-FI':+"d.M.yyyy",
'fil-PH':+"M/d/yyyy",
'fo':+"dd.MM.yyyy",
'fo-DK':+"dd.MM.yyyy",
'fo-FO':+"dd.MM.yyyy",
'fr':+"dd/MM/yyyy",
'fr-029':+"dd/MM/yyyy",
'fr-BE':+"dd-MM-yy",
'fr-BF':+"dd/MM/yyyy",
'fr-BI':+"dd/MM/yyyy",
'fr-BJ':+"dd/MM/yyyy",
'fr-BL':+"dd/MM/yyyy",
'fr-CA':+"yyyy-MM-dd",
'fr-CD':+"dd/MM/yyyy",
'fr-CF':+"dd/MM/yyyy",
'fr-CG':+"dd/MM/yyyy",
'fr-CH':+"dd.MM.yyyy",
'fr-CI':+"dd/MM/yyyy",
'fr-CM':+"dd/MM/yyyy",
'fr-DJ':+"dd/MM/yyyy",
'fr-DZ':+"dd/MM/yyyy",
'fr-FR':+"dd/MM/yyyy",
'fr-GA':+"dd/MM/yyyy",
'fr-GF':+"dd/MM/yyyy",
'fr-GN':+"dd/MM/yyyy",
'fr-GP':+"dd/MM/yyyy",
'fr-GQ':+"dd/MM/yyyy",
'fr-HT':+"dd/MM/yyyy",
'fr-KM':+"dd/MM/yyyy",
'fr-LU':+"dd/MM/yyyy",
'fr-MA':+"dd/MM/yyyy",
'fr-MC':+"dd/MM/yyyy",
'fr-MF':+"dd/MM/yyyy",
'fr-MG':+"dd/MM/yyyy",
'fr-ML':+"dd/MM/yyyy",
'fr-MQ':+"dd/MM/yyyy",
'fr-MR':+"dd/MM/yyyy",
'fr-MU':+"dd/MM/yyyy",
'fr-NC':+"dd/MM/yyyy",
'fr-NE':+"dd/MM/yyyy",
'fr-PF':+"dd/MM/yyyy",
'fr-PM':+"dd/MM/yyyy",
'fr-RE':+"dd/MM/yyyy",
'fr-RW':+"dd/MM/yyyy",
'fr-SC':+"dd/MM/yyyy",
'fr-SN':+"dd/MM/yyyy",
'fr-SY':+"dd/MM/yyyy",
'fr-TD':+"dd/MM/yyyy",
'fr-TG':+"dd/MM/yyyy",
'fr-TN':+"dd/MM/yyyy",
'fr-VU':+"dd/MM/yyyy",
'fr-WF':+"dd/MM/yyyy",
'fr-YT':+"dd/MM/yyyy",
'fur-IT':+"dd/MM/yyyy",
'fy-NL':+"dd-MM-yyyy",
'ga':+"dd/MM/yyyy",
'ga-IE':+"dd/MM/yyyy",
'gd':+"dd/MM/yyyy",
'gd-GB':+"dd/MM/yyyy",
'gl':+"dd/MM/yyyy",
'gl-ES':+"dd/MM/yyyy",
'gn':+"dd/MM/yyyy",
'gn-PY':+"dd/MM/yyyy",
'gsw-CH':+"dd.MM.yyyy",
'gsw-FR':+"dd/MM/yyyy",
'gsw-LI':+"dd.MM.yyyy",
'gu':+"dd-MM-yy",
'gu-IN':+"dd-MM-yy",
'guz-KE':+"dd/MM/yyyy",
'gv-IM':+"dd/MM/yyyy",
'ha-Latn-GH':+"d/M/yyyy",
'ha-Latn-NE':+"d/M/yyyy",
'ha-Latn-NG':+"d/M/yyyy",
'haw-US':+"d/M/yyyy",
'he-IL':+"dd/MM/yyyy",
'hi-IN':+"dd-MM-yyyy",
'hr':+"d.M.yyyy.",
'hr-BA':+"d.+M.+yyyy.",
'hr-HR':+"d.M.yyyy.",
'hsb-DE':+"d.M.yyyy",
'hu':+"yyyy.+MM.+dd.",
'hu-HU':+"yyyy.+MM.+dd.",
'hy-AM':+"dd.MM.yyyy",
'ia-001':+"yyyy/MM/dd",
'ia-FR':+"yyyy/MM/dd",
'ibb-NG':+"d/M/yyyy",
'id':+"dd/MM/yyyy",
'id-ID':+"dd/MM/yyyy",
'ig-NG':+"dd/MM/yyyy",
'ii-CN':+"yyyy/M/d",
'is':+"d.M.yyyy",
'is-IS':+"d.M.yyyy",
'it':+"dd/MM/yyyy",
'it-CH':+"dd.MM.yyyy",
'it-IT':+"dd/MM/yyyy",
'it-SM':+"dd/MM/yyyy",
'it-VA':+"dd/MM/yyyy",
'iu-Cans-CA':+"d/M/yyyy",
'iu-Latn-CA':+"d/MM/yyyy",
'ja-JP':+"yyyy/MM/dd",
'jgo-CM':+"yyyy-MM-dd",
'jmc-TZ':+"dd/MM/yyyy",
'jv-Java-ID':+"dd/MM/yyyy",
'jv-Latn-ID':+"dd/MM/yyyy",
'ka-GE':+"dd.MM.yyyy",
'kab-DZ':+"d/M/yyyy",
'kam-KE':+"dd/MM/yyyy",
'kde-TZ':+"dd/MM/yyyy",
'kea-CV':+"d/M/yyyy",
'khq-ML':+"d/M/yyyy",
'ki':+"dd/MM/yyyy",
'ki-KE':+"dd/MM/yyyy",
'kk-KZ':+"dd.MM.yyyy",
'kkj-CM':+"dd/MM+yyyy",
'kl-GL':+"dd-MM-yyyy",
'kln-KE':+"dd/MM/yyyy",
'km':+"dd/MM/yy",
'km-KH':+"dd/MM/yy",
'kn':+"dd-MM-yy",
'kn-IN':+"dd-MM-yy",
'ko-KP':+"yyyy.+M.+d.",
'ko-KR':+"yyyy-MM-dd",
'kok-IN':+"dd-MM-yyyy",
'kr':+"d/M/yyyy",
'kr-NG':+"d/M/yyyy",
'ks-Arab-IN':+"M/d/yyyy",
'ks-Deva-IN':+"dd-MM-yyyy",
'ksb-TZ':+"dd/MM/yyyy",
'ksf-CM':+"d/M/yyyy",
'ksh-DE':+"d.+M.+yyyy",
'ku-Arab-IQ':+"yyyy/MM/dd",
'ku-Arab-IR':+"dd/MM/yyyy",
'kw':+"dd/MM/yyyy",
'kw-GB':+"dd/MM/yyyy",
'ky':+"d-MMM+yy",
'ky-KG':+"d-MMM+yy",
'la':+"dd/MM/yyyy",
'la-001':+"dd/MM/yyyy",
'lag-TZ':+"dd/MM/yyyy",
'lb':+"dd.MM.yy",
'lb-LU':+"dd.MM.yy",
'lg-UG':+"dd/MM/yyyy",
'lkt-US':+"M/d/yyyy",
'ln-AO':+"d/M/yyyy",
'ln-CD':+"d/M/yyyy",
'ln-CF':+"d/M/yyyy",
'ln-CG':+"d/M/yyyy",
'lo-LA':+"d/M/yyyy",
'lrc-IQ':+"yyyy-MM-dd",
'lrc-IR':+"dd/MM/yyyy",
'lt':+"yyyy-MM-dd",
'lt-LT':+"yyyy-MM-dd",
'lu':+"d/M/yyyy",
'lu-CD':+"d/M/yyyy",
'luo-KE':+"dd/MM/yyyy",
'luy-KE':+"dd/MM/yyyy",
'lv':+"dd.MM.yyyy",
'lv-LV':+"dd.MM.yyyy",
'mas-KE':+"dd/MM/yyyy",
'mas-TZ':+"dd/MM/yyyy",
'mer-KE':+"dd/MM/yyyy",
'mfe-MU':+"d/M/yyyy",
'mg':+"yyyy-MM-dd",
'mg-MG':+"yyyy-MM-dd",
'mgh-MZ':+"dd/MM/yyyy",
'mgo-CM':+"yyyy-MM-dd",
'mi-NZ':+"dd/MM/yyyy",
'mk':+"dd.M.yyyy",
'mk-MK':+"dd.M.yyyy",
'ml':+"d/M/yyyy",
'ml-IN':+"d/M/yyyy",
'mn':+"yyyy.MM.dd",
'mn-MN':+"yyyy.MM.dd",
'mn-Mong-CN':+"yyyy/M/d",
'mn-Mong-MN':+"yyyy/M/d",
'mni-IN':+"dd/MM/yyyy",
'moh-CA':+"M/d/yyyy",
'mr':+"dd-MM-yyyy",
'mr-IN':+"dd-MM-yyyy",
'ms':+"d/MM/yyyy",
'ms-BN':+"d/MM/yyyy",
'ms-MY':+"d/MM/yyyy",
'ms-SG':+"d/MM/yyyy",
'mt':+"dd/MM/yyyy",
'mt-MT':+"dd/MM/yyyy",
'mua-CM':+"d/M/yyyy",
'my':+"dd-MM-yyyy",
'my-MM':+"dd-MM-yyyy",
'mzn-IR':+"dd/MM/yyyy",
'naq-NA':+"dd/MM/yyyy",
'nb-NO':+"dd.MM.yyyy",
'nb-SJ':+"dd.MM.yyyy",
'nd-ZW':+"dd/MM/yyyy",
'nds-DE':+"d.MM.yyyy",
'nds-NL':+"d.MM.yyyy",
'ne':+"M/d/yyyy",
'ne-IN':+"yyyy/M/d",
'ne-NP':+"M/d/yyyy",
'nl':+"d-M-yyyy",
'nl-AW':+"dd-MM-yyyy",
'nl-BE':+"d/MM/yyyy",
'nl-BQ':+"dd-MM-yyyy",
'nl-CW':+"dd-MM-yyyy",
'nl-NL':+"d-M-yyyy",
'nl-SR':+"dd-MM-yyyy",
'nl-SX':+"dd-MM-yyyy",
'nmg-CM':+"d/M/yyyy",
'nn-NO':+"dd.MM.yyyy",
'nnh-CM':+"dd/MM/yyyy",
'no':+"dd.MM.yyyy",
'nqo-GN':+"dd/MM/yyyy",
'nr':+"yyyy-MM-dd",
'nr-ZA':+"yyyy-MM-dd",
'nso-ZA':+"yyyy-MM-dd",
'nus-SS':+"d/MM/yyyy",
'nyn-UG':+"dd/MM/yyyy",
'oc-FR':+"dd/MM/yyyy",
'om':+"dd/MM/yyyy",
'om-ET':+"dd/MM/yyyy",
'om-KE':+"dd/MM/yyyy",
'or-IN':+"dd-MM-yy",
'os-GE':+"dd.MM.yyyy",
'os-RU':+"dd.MM.yyyy",
'pa':+"dd-MM-yy",
'pa-Arab-PK':+"dd-MM-yy",
'pa-IN':+"dd-MM-yy",
'pap-029':+"d-M-yyyy",
'pl':+"dd.MM.yyyy",
'pl-PL':+"dd.MM.yyyy",
'prg-001':+"dd.MM.yyyy",
'prs-AF':+"yyyy/M/d",
'ps':+"yyyy/M/d",
'ps-AF':+"yyyy/M/d",
'pt':+"dd/MM/yyyy",
'pt-AO':+"dd/MM/yyyy",
'pt-BR':+"dd/MM/yyyy",
'pt-CH':+"dd/MM/yyyy",
'pt-CV':+"dd/MM/yyyy",
'pt-GQ':+"dd/MM/yyyy",
'pt-GW':+"dd/MM/yyyy",
'pt-LU':+"dd/MM/yyyy",
'pt-MO':+"dd/MM/yyyy",
'pt-MZ':+"dd/MM/yyyy",
'pt-PT':+"dd/MM/yyyy",
'pt-ST':+"dd/MM/yyyy",
'pt-TL':+"dd/MM/yyyy",
'quc-Latn-GT':+"dd/MM/yyyy",
'quz-BO':+"dd/MM/yyyy",
'quz-EC':+"dd/MM/yyyy",
'quz-PE':+"dd/MM/yyyy",
'rm-CH':+"dd-MM-yyyy",
'rn-BI':+"d/M/yyyy",
'ro':+"dd.MM.yyyy",
'ro-MD':+"dd.MM.yyyy",
'ro-RO':+"dd.MM.yyyy",
'rof-TZ':+"dd/MM/yyyy",
'ru':+"dd.MM.yyyy",
'ru-BY':+"dd.MM.yyyy",
'ru-KG':+"dd.MM.yyyy",
'ru-KZ':+"dd.MM.yyyy",
'ru-MD':+"dd.MM.yyyy",
'ru-RU':+"dd.MM.yyyy",
'ru-UA':+"dd.MM.yyyy",
'rw':+"yyyy-MM-dd",
'rw-RW':+"yyyy-MM-dd",
'rwk-TZ':+"dd/MM/yyyy",
'sa':+"dd-MM-yyyy",
'sa-IN':+"dd-MM-yyyy",
'sah-RU':+"dd.MM.yyyy",
'saq-KE':+"dd/MM/yyyy",
'sbp-TZ':+"dd/MM/yyyy",
'sd':+"dd/MM/yyyy",
'sd-Arab-PK':+"dd/MM/yyyy",
'sd-Deva-IN':+"dd/MM/yyyy",
'se':+"yyyy-MM-dd",
'se-FI':+"d.M.yyyy",
'se-NO':+"yyyy-MM-dd",
'se-SE':+"yyyy-MM-dd",
'seh-MZ':+"d/M/yyyy",
'ses-ML':+"d/M/yyyy",
'sg':+"d/M/yyyy",
'sg-CF':+"d/M/yyyy",
'shi-Latn-MA':+"d/M/yyyy",
'shi-Tfng-MA':+"d/M/yyyy",
'si':+"yyyy-MM-dd",
'si-LK':+"yyyy-MM-dd",
'sk':+"d.+M.+yyyy",
'sk-SK':+"d.+M.+yyyy",
'sl':+"d.+MM.+yyyy",
'sl-SI':+"d.+MM.+yyyy",
'sma-NO':+"dd.MM.yyyy",
'sma-SE':+"yyyy-MM-dd",
'smj-NO':+"dd.MM.yyyy",
'smj-SE':+"yyyy-MM-dd",
'smn-FI':+"d.M.yyyy",
'sms-FI':+"d.M.yyyy",
'sn':+"yyyy-MM-dd",
'sn-Latn-ZW':+"yyyy-MM-dd",
'so':+"dd/MM/yyyy",
'so-DJ':+"dd/MM/yyyy",
'so-ET':+"dd/MM/yyyy",
'so-KE':+"dd/MM/yyyy",
'so-SO':+"dd/MM/yyyy",
'sq-AL':+"d.M.yyyy",
'sq-MK':+"d.M.yyyy",
'sq-XK':+"d.M.yyyy",
'sr':+"d.M.yyyy.",
'sr-Cyrl-BA':+"d.M.yyyy.",
'sr-Cyrl-ME':+"d.M.yyyy.",
'sr-Cyrl-RS':+"dd.MM.yyyy.",
'sr-Cyrl-XK':+"d.M.yyyy.",
'sr-Latn-BA':+"d.M.yyyy.",
'sr-Latn-ME':+"d.M.yyyy.",
'sr-Latn-RS':+"d.M.yyyy.",
'sr-Latn-XK':+"d.M.yyyy.",
'ss':+"yyyy-MM-dd",
'ss-SZ':+"yyyy-MM-dd",
'ss-ZA':+"yyyy-MM-dd",
'ssy-ER':+"dd/MM/yyyy",
'st':+"yyyy-MM-dd",
'st-LS':+"yyyy-MM-dd",
'st-ZA':+"yyyy-MM-dd",
'sv':+"yyyy-MM-dd",
'sv-AX':+"yyyy-MM-dd",
'sv-FI':+"dd-MM-yyyy",
'sv-SE':+"yyyy-MM-dd",
'sw-CD':+"dd/MM/yyyy",
'sw-KE':+"dd/MM/yyyy",
'sw-TZ':+"dd/MM/yyyy",
'sw-UG':+"dd/MM/yyyy",
'syr-SY':+"dd/MM/yyyy",
'ta-IN':+"dd-MM-yyyy",
'ta-LK':+"d/M/yyyy",
'ta-MY':+"d/M/yyyy",
'ta-SG':+"d/M/yyyy",
'te-IN':+"dd-MM-yy",
'teo-KE':+"dd/MM/yyyy",
'teo-UG':+"dd/MM/yyyy",
'tg':+"dd.MM.yyyy",
'tg-Cyrl-TJ':+"dd.MM.yyyy",
'th':+"d/M/yyyy",
'th-TH':+"d/M/yyyy",
'ti-ER':+"dd/MM/yyyy",
'ti-ET':+"dd/MM/yyyy",
'tig-ER':+"dd/MM/yyyy",
'tk':+"dd.MM.yy+'ý.'",
'tk-TM':+"dd.MM.yy+'ý.'",
'tn':+"yyyy-MM-dd",
'tn-BW':+"yyyy-MM-dd",
'tn-ZA':+"yyyy-MM-dd",
'to':+"d/M/yyyy",
'to-TO':+"d/M/yyyy",
'tr':+"d.MM.yyyy",
'tr-CY':+"d.MM.yyyy",
'tr-TR':+"d.MM.yyyy",
'ts-ZA':+"yyyy-MM-dd",
'tt':+"dd.MM.yyyy",
'tt-RU':+"dd.MM.yyyy",
'twq-NE':+"d/M/yyyy",
'tzm-Arab-MA':+"d/M/yyyy",
'tzm-Latn-DZ':+"dd-MM-yyyy",
'tzm-Latn-MA':+"dd/MM/yyyy",
'tzm-Tfng-MA':+"dd-MM-yyyy",
'ug':+"yyyy-M-d",
'ug-CN':+"yyyy-M-d",
'uk-UA':+"dd.MM.yyyy",
'ur-IN':+"d/M/yy",
'ur-PK':+"dd/MM/yyyy",
'uz':+"dd/MM/yyyy",
'uz-Arab-AF':+"dd/MM+yyyy",
'uz-Cyrl-UZ':+"dd/MM/yyyy",
'uz-Latn-UZ':+"dd/MM/yyyy",
'vai-Latn-LR':+"dd/MM/yyyy",
'vai-Vaii-LR':+"dd/MM/yyyy",
've':+"yyyy-MM-dd",
've-ZA':+"yyyy-MM-dd",
'vi':+"dd/MM/yyyy",
'vi-VN':+"dd/MM/yyyy",
'vo-001':+"yyyy-MM-dd",
'vun-TZ':+"dd/MM/yyyy",
'wae-CH':+"yyyy-MM-dd",
'wal-ET':+"dd/MM/yyyy",
'wo-SN':+"dd/MM/yyyy",
'xh-ZA':+"yyyy-MM-dd",
'xog-UG':+"dd/MM/yyyy",
'yav-CM':+"d/M/yyyy",
'yi-001':+"dd/MM/yyyy",
'yo-BJ':+"dd/MM/yyyy",
'yo-NG':+"dd/MM/yyyy",
'zgh-Tfng-MA':+"d/M/yyyy",
'zh-CN':+"yyyy/M/d",
'zh-Hans-HK':+"d/M/yyyy",
'zh-Hans-MO':+"d/M/yyyy",
'zh-HK':+"d/M/yyyy",
'zh-MO':+"d/M/yyyy",
'zh-SG':+"d/M/yyyy",
'zh-TW':+"yyyy/M/d",
'zu-ZA':+"M/d/yyyy",
};|code-block|syntax|javascript|1097100|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

blocks|key|1312165|text|​|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1312166|function+getDatePattern(locale)+{
++//+expected+style+=+year:+2010,+month:+12,+day:+31
++var+options+=+{+year:+"numeric",+month:+"2-digit",+day:+"2-digit"+};

++//+formatToParts()+returns+array+of+object+breaking+down+the+locales+dateformat
++//+[+
++//++{type:+"month",+value:+"03"},
++//++{type:+"literal",+value:+"/"},
++//++{type:+"day",+value:+"30"},
++//++{type:+"literal",+value:+"/"},
++//++{type:+"year",+value:+"2021"},
++//+]
++var+formatter+=+new+Intl.DateTimeFormat(locale,+options).formatToParts();

++return+formatter.map(function(e)+{
++++++switch(e.type)+{
++++++++case+'month':
++++++++++return+'MM';+break;
++++++++case+'day':
++++++++++return+'DD';+break;
++++++++case+'year':
++++++++++return+'YYYY';+break;
++++++++default:+
++++++++++return+e.value;
++++++};
++++}).join('');
}

//+"YYYY/MM/DD"
console.log(getDatePattern('en'));
//+"YYYY.+MM.+DD."
console.log(getDatePattern('ko'));|code-block|syntax|javascript|1312167|1312168|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|K|8|@]|9|@]|A|$E|F]]|$1|G|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|M|8|@]|9|@]|A|$]]]|I|$]]

<div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-js lang-js prettyprint-override"><code>function getDatePattern(locale) {
 // expected style = year: 2010, month: 12, day: 31
 var options = { year: "numeric", month: "2-digit", day: "2-digit" };

 // formatToParts() returns array of object breaking down the locales dateformat
 // [ 
 // {type: "month", value: "03"},
 // {type: "literal", value: "/"},
 // {type: "day", value: "30"},
 // {type: "literal", value: "/"},
 // {type: "year", value: "2021"},
 // ]
 var formatter = new Intl.DateTimeFormat(locale, options).formatToParts();

 return formatter.map(function(e) {
 switch(e.type) {
 case 'month':
 return 'MM'; break;
 case 'day':
 return 'DD'; break;
 case 'year':
 return 'YYYY'; break;
 default: 
 return e.value;
 };
 }).join('');
}

// "YYYY/MM/DD"
console.log(getDatePattern('en'));
// "YYYY. MM. DD."
console.log(getDatePattern('ko'));</code></pre>
</div>
</div>

blocks|key|1097170|text|对于输出，如MO/DY/YEAR或DY/MO/YEAR+(或与您的区域设置相关的任何格式)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1097171|let+time+=+new+Date()
let+timestampDate+=+new+Date(time).toLocaleDateString(navigator.language)|code-block|syntax|javascript|1097172|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

For an output such as MO/DY/YEAR or DY/MO/YEAR (or whichever format is pertinent to your locale)
<pre><code>let time = new Date()
let timestampDate = new Date(time).toLocaleDateString(navigator.language)
</code></pre>

blocks|key|1312280|text|当我试图弄清楚如何显示日期选择器字段的占位符时，我偶然发现了这条线索。最终，我希望看到基于浏览器区域设置的用户友好的格式字符串(例如，对于'en-AU'，我想显示'dd/mm/yyyy')。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1312281|多年来，似乎已经有了各种方法来实现这一点。new+Intl.DateTimeFormat("en-AU")).resolved.pattern看起来过去得到了很好的支持，但现在已经被in+favour+of+formatToParts删除了。|1312282|使用formatToParts将日期分割成它的组成部分，这样我们就可以推断模式字符串--下面是我编写的一个基本函数，就是为了做到这一点：|1312283|/**
+*+Get+the+date+format+pattern+for+the+given+locale.+
+*+@example+
+*+++++getDateFormatPattern('en-AU');+++//+dd/mm/yyyy
+*+++++getDateFormatPattern('en-US');+++//+m/d/yyyy
+*/
const+getDateFormatPattern+=+(locale:+string)+=>+{
++++const+getPatternForPart+=+(part:+Intl.DateTimeFormatPart)+=>+{
++++++++switch+(part.type)+{
++++++++++++case+'day':
++++++++++++++++return+'d'.repeat(part.value.length);
++++++++++++case+'month':
++++++++++++++++return+'m'.repeat(part.value.length);
++++++++++++case+'year':
++++++++++++++++return+'y'.repeat(part.value.length);
++++++++++++case+'literal':
++++++++++++++++return+part.value;
++++++++++++default:
++++++++++++++++console.log('Unsupported+date+part',+part);
++++++++++++++++return+'';
++++++++}
++++};

++++return+new+Intl.DateTimeFormat(locale).formatToParts(new+Date('2021-01-01'))
++++++++.map(getPatternForPart)
++++++++.join('');
};|code-block|syntax|javascript|1312284|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/tc39/ecma402/issues/21^0|1X|7|29|C|0|L|1E|2W|D|2J|Q|0|0|2|D|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|11|8|@$9|12|A|13|B|C]|$9|14|A|15|B|C]]|D|@$9|16|A|17|1|18]]|E|$]]|$1|H|3|I|5|6|7|19|8|@$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|J|3|K|5|L|7|1C|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|1D|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]]]

I stumbled on this thread while trying to work out how to display a placeholder for a date picker field. Ultimately, I want to see a user-friendly format string based on the browser's locale (e.g. for <code>'en-AU'</code> I want to display <code>'dd/mm/yyyy'</code>).
It looks like over the years, there's been various ways to achieve bits and pieces of this. <code>new Intl.DateTimeFormat(&quot;en-AU&quot;)).resolved.pattern</code> looks like it used to be fairly well supported, but this has now been removed <a href="https://github.com/tc39/ecma402/issues/21" rel="noreferrer">in favour of <code>formatToParts</code></a>.
Using <code>formatToParts</code> to dice up a date into its constituent parts lets us extrapolate the pattern string - here's a basic function that I wrote to do exactly that:
<pre><code>/**
 * Get the date format pattern for the given locale. 
 * @example 
 * getDateFormatPattern('en-AU'); // dd/mm/yyyy
 * getDateFormatPattern('en-US'); // m/d/yyyy
 */
const getDateFormatPattern = (locale: string) =&gt; {
 const getPatternForPart = (part: Intl.DateTimeFormatPart) =&gt; {
 switch (part.type) {
 case 'day':
 return 'd'.repeat(part.value.length);
 case 'month':
 return 'm'.repeat(part.value.length);
 case 'year':
 return 'y'.repeat(part.value.length);
 case 'literal':
 return part.value;
 default:
 console.log('Unsupported date part', part);
 return '';
 }
 };

 return new Intl.DateTimeFormat(locale).formatToParts(new Date('2021-01-01'))
 .map(getPatternForPart)
 .join('');
};
</code></pre>

blocks|key|1312309|text|const+newDate+=新日期()；const+currentDate+=+newDate.toLocaleDateString("sv-SE"，{年：‘数值’，月：‘数值’，日：‘数值’})；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1312310|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

const newDate = new Date();
const currentDate = newDate.toLocaleDateString(&quot;sv-SE&quot;,{year: 'numeric', month: 'numeric', day: 'numeric' });

blocks|key|1097333|text|这是JavaScript实现中的一个常见问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1097334|ECMA+says+Date#toLocaleDateString()+is+implementation-defined。因此，JavaScript实现可以自由地实现特定于主机、特定于日期的语言环境。|offset|length|style|CODE|1097335|问题是，大多数JavaScript实现将打印日期的工作传递给ICU库，该库本身通常不支持特定于主机的语言环境定义even+though+it+is+desired。|1097336|对于ICU支持的语言环境，有一个"@compat=host“选项，但它很少使用，而且大多数JavaScript实现似乎都会阻止在选定的语言环境中设置这样的选项。|1097337|entityMap|0|LINK|mutability|MUTABLE|url|https://tc39.es/ecma262/#sec-date.prototype.tolocaledatestring|1|https://unicode-org.atlassian.net/browse/ICU-111^0|0|A|P|0|1P|0|0|1K|P|1|0|H|C|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@$D|X|E|Y|F|G]]|9|@$D|Z|E|10|1|11]]|A|$]]|$1|H|3|I|5|6|7|12|8|@]|9|@$D|13|E|14|1|15]]|A|$]]|$1|J|3|K|5|6|7|16|8|@$D|17|E|18|F|G]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|M|$N|$5|O|P|Q|A|$R|S]]|T|$5|O|P|Q|A|$R|U]]]]

This is a common problem in JavaScript implementations.
<a href="https://tc39.es/ecma262/#sec-date.prototype.tolocaledatestring" rel="nofollow noreferrer">ECMA says <code>Date#toLocaleDateString()</code> is implementation-defined</a>.
So JavaScript implementations are free to implement host-specific date-specific locales.
The problem is that most JavaScript implementations pass on the job of printing dates to the ICU library which itself does not normally support host-specific locale definitions, <a href="https://unicode-org.atlassian.net/browse/ICU-111" rel="nofollow noreferrer">even though it is desired</a>.
There is a &quot;<code>@compat=host</code>&quot; option for locales that ICU supports, but it's rarely, if ever, used and most JavaScript implementations seem to prevent setting such options on a selected locale.

Is there anyway we can know using JavaScript the Short Date Format used in the Control Panel -> Regional and Language Settings?

I know the using the combination of following we can get the Locale Long Name format

<pre><code>toString()
toLocaleString()
toLocaleDateString()
toLocaleTimeString()
</code></pre>

But there is no direct function in JavaScript like <code>toLocaleShortDateString()</code>.

Are there any scripts available to find out what the user setting is?

Thanks.

Get Locale Short Date Format using javascript

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在控制面板->区域和语言设置中使用的短日期格式JavaScript，有什么我们可以知道的吗？我知道使用下面的组合我们可以得到Locale Long Name格式toString()toLocaleString()toLocaleDateString()toLocaleTimeString()但是在JavaScript中...

问使用javascript获取区域设置短日期格式
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