Nodejs Date Format dateFormat()

Here you can find the source of dateFormat()

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Method Source Code

var dateFormat = function () {
   var   token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
      timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
      timezoneClip = /[^-+\dA-Z]/g,/*from  w  w  w. j a v a2 s .c o  m*/
      pad = function (val, len) {
         val = String(val);
         len = len || 2;
         while (val.length < len) val = "0" + val;
         return val;
      };

   // Regexes and supporting functions are cached through closure
   return function (date, mask, utc) {
      var dF = dateFormat;

      // You can't provide utc if you skip other args (use the "UTC:" mask prefix)
      if (arguments.length == 1 && Object.prototype.toString.call(date) == "[object String]" && !/\d/.test(date)) {
         mask = date;
         date = undefined;
      }

      // Passing date through Date applies Date.parse, if necessary
      date = date ? new Date(date) : new Date;
      if (isNaN(date)) throw SyntaxError("invalid date");

      mask = String(dF.masks[mask] || mask || dF.masks["default"]);

      // Allow setting the utc argument via the mask
      if (mask.slice(0, 4) == "UTC:") {
         mask = mask.slice(4);
         utc = true;
      }

      var   _ = utc ? "getUTC" : "get",
         d = date[_ + "Date"](),
         D = date[_ + "Day"](),
         m = date[_ + "Month"](),
         y = date[_ + "FullYear"](),
         H = date[_ + "Hours"](),
         M = date[_ + "Minutes"](),
         s = date[_ + "Seconds"](),
         L = date[_ + "Milliseconds"](),
         o = utc ? 0 : date.getTimezoneOffset(),
         flags = {
            d:    d,
            dd:   pad(d),
            ddd:  dF.i18n.dayNames[D],
            dddd: dF.i18n.dayNames[D + 7],
            m:    m + 1,
            mm:   pad(m + 1),
            mmm:  dF.i18n.monthNames[m],
            mmmm: dF.i18n.monthNames[m + 12],
            yy:   String(y).slice(2),
            yyyy: y,
            h:    H % 12 || 12,
            hh:   pad(H % 12 || 12),
            H:    H,
            HH:   pad(H),
            M:    M,
            MM:   pad(M),
            s:    s,
            ss:   pad(s),
            l:    pad(L, 3),
            L:    pad(L > 99 ? Math.round(L / 10) : L),
            t:    H < 12 ? "a"  : "p",
            tt:   H < 12 ? "am" : "pm",
            T:    H < 12 ? "A"  : "P",
            TT:   H < 12 ? "AM" : "PM",
            Z:    utc ? "UTC" : (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
            o:    (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4),
            S:    ["th", "st", "nd", "rd"][d % 10 > 3 ? 0 : (d % 100 - d % 10 != 10) * d % 10]
         };

      return mask.replace(token, function ($0) {
         return $0 in flags ? flags[$0] : $0.slice(1, $0.length - 1);
      });
   };
}();

// Some common format strings
dateFormat.masks = {
   "default":      "ddd mmm dd yyyy HH:MM:ss",
   shortDate:      "m/d/yy",
   mediumDate:     "mmm d, yyyy",
   longDate:       "mmmm d, yyyy",
   fullDate:       "dddd, mmmm d, yyyy",
   shortTime:      "h:MM TT",
   mediumTime:     "h:MM:ss TT",
   longTime:       "h:MM:ss TT Z",
   isoDate:        "yyyy-mm-dd",
   isoTime:        "HH:MM:ss",
   isoDateTime:    "yyyy-mm-dd'T'HH:MM:ss",
   isoUtcDateTime: "UTC:yyyy-mm-dd'T'HH:MM:ss'Z'"
};

// Internationalization strings
dateFormat.i18n = {
   dayNames: [
      "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",
      "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
   ],
   monthNames: [
      "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
      "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
   ]
};

// For convenience...
Date.prototype.format = function (mask, utc) {
   return dateFormat(this, mask, utc);
};


//template support
function $template( template, data, repeat ) {
   var tpl = (typeof template == 'string')? $('#' + template) : $(template);
   var varName = tpl.attr('r:varName');
   
   var result = [], ctx = {}, html;
   
   if( !repeat ) data = [data];
   
   data.each(function(obj){
      ctx[ varName || 'it' ] = obj;
      html = unescape(tpl.html()).evaluate( ctx );
      result.push(html);
   });
   
   return result.join('');
}

Related

  1. Format(formatStr)
    Date.prototype.Format = function(formatStr)   
    var str = formatStr;
    str=str.replace(/yyyy|YYYY/,this.getFullYear());   
    str=str.replace(/yy|YY/,(this.getYear() % 100)>9?(this.getYear() % 100).toString():'0' + (this.getYear() % 100));   
    str=str.replace(/MM/,this.getMonth()>9?(this.getMonth()).toString():'0' + (this.getMonth()+1));   
    str=str.replace(/M/g,this.getMonth());
    str=str.replace(/dd|DD/,this.getDate()>9?this.getDate().toString():'0' + this.getDate());   
    str=str.replace(/d|D/g,this.getDate());   
...
  2. Format(formatStr)
    Date.prototype.Format = function(formatStr)
    var str = formatStr;
    var Week = ['?','?','?','?','?','?','?'];
    str=str.replace(/yyyy|YYYY/,this.getFullYear());
    str=str.replace(/yy|YY/,(this.getYear() % 100)>9?(this.getYear() % 100).toString():'0' + (this.getYear() % 100));
    str=str.replace(/MM/,this.getMonth()>8?(this.getMonth()+1).toString():'0' + (this.getMonth()+1));
    str=str.replace(/M/g,(this.getMonth()+1));
    str=str.replace(/w|W/g,Week[this.getDay()]);
...
  3. FormatUTC(fmt)
    Date.prototype.FormatUTC = function (fmt) {
    str = fmt;
    str = str.replace(/yyyy|YYYY/, this.getUTCFullYear());
    str = str.replace(/mm/, this.getUTCMonth() >= 9 ? this.getUTCMonth() + 1 : '0' + (this.getUTCMonth() + 1));
    str = str.replace(/dd/, this.getUTCDate() > 9 ? this.getUTCDate() : '0' + this.getUTCDate());
    str = str.replace(/HH/, this.getUTCHours() > 9 ? this.getUTCHours() : '0' + this.getUTCHours());
    str = str.replace(/MM/, this.getUTCMinutes() > 9 ? this.getUTCMinutes() : '0' + this.getUTCMinutes());
    str = str.replace(/SS/, this.getUTCSeconds() > 9 ? this.getUTCSeconds() : '0' + this.getUTCSeconds());
    return str;
...
  4. dateFormat()
    Number.prototype.dateFormat = function () {
    var date = new Date(this);
    var year = date.getFullYear();
    var month = date.getMonth() + 1;
    var day = date.getDate();
    var hh = date.getHours();
    var mm = date.getMinutes();
    var ss = date.getSeconds();
    return "" + year + "-" +
...
  5. dateFormat()
    Number.prototype.dateFormat=function(){
    var dates=this.splitYmd();
    return dates.join("/");
  6. dateFormat()
    Date.prototype.dateFormat = function () {
    var date = this;
    var year = date.getFullYear();
    var month = date.getMonth() + 1;
    var day = date.getDate();
    var hh = date.getHours();
    var mm = date.getMinutes();
    var ss = date.getSeconds();
    return "" + year + "-" +
...
  7. dateFormat()
    var dateFormat = function () {
  var  token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
    timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
    timezoneClip = /[^-+\dA-Z]/g,
    pad = function (val, len) {
      val = String(val);
      len = len || 2;
      while (val.length < len) val = "0" + val;
      return val;
...
  8. dateFormat(format)
    Date.prototype.dateFormat = function(format) {
    var yyyy = this.getFullYear().toString();
    format = format.replace(/yyyy/g, yyyy)
    var mm = (this.getMonth()+1).toString();
    format = format.replace(/mm/g, (mm[1]?mm:"0"+mm[0]));
    var dd  = this.getDate().toString();
    format = format.replace(/dd/g, (dd[1]?dd:"0"+dd[0]));
    var hh = this.getHours().toString();
    format = format.replace(/hh/g, (hh[1]?hh:"0"+hh[0]));
...
  9. dateFormat(value)
    function dateFormat(value) {
  if (!value)
    return new Date(0);
  var pattern = /\/Date\(([0-9]+)((-|\+)[0-9]+)?\)\
  var match = pattern.exec(value.toString());
  if (!match)
    return new Date(0);
  var utc = parseInt(match[1], 10);
  var offset = (parseInt(match[2], 10) || 0) * 10 * 60 * 60; 
...