Nodejs Date Parse setISODuration(input)

Method Source Code

Date.prototype.setISODuration = function (input) {
  var ISODurationRegex = /P((([0-9]*\.?[0-9]*)Y)?(([0-9]*\.?[0-9]*)M)?(([0-9]*\.?[0-9]*)W)?(([0-9]*\.?[0-9]*)D)?)?(T(([0-9]*\.?[0-9]*)H)?(([0-9]*\.?[0-9]*)M)?(([0-9]*\.?[0-9]*)S)?)?/
  
  if(typeof input !== 'string') {
    //throw err//from  www .j  a va2  s.c om
    return console.log("err");
  }

  if(ISODurationRegex.test(input) === false) {
    //Throw err
    return console.log('err');
  }

  var matches = input.match(ISODurationRegex);
  
  var durations = {
    FullYear: parseFloat(matches[3]),
    Month: parseFloat(matches[5]),
    Hours: (function () {
      var weeks = parseFloat(matches[7]) || 0;
      var days = parseFloat(matches[9]) || 0;
      var hours = parseFloat(matches[12]) || 0;
      return hours + days * 24 + weeks * 24 * 7
    }()),
    Minutes: parseFloat(matches[14]),
    Seconds: parseFloat(matches[16])
  };
  
  for(var prop in durations) {
    var getter = "get" + prop;
    var setter = "set" + prop;
    var value = this[getter]() + (durations[prop] || 0);
    
    this[setter](value);
  }
}

Related

1. parse(s)

   Date.prototype.parse = function (s) {
       if ((s || '') == '')
           return null;
       if (typeof (s) == "object")
           return s;
       if (typeof (s) == 'string') {
           if (/\/Date\(.*\)\
               return eval(s.replace(/\/Date\((.*?)\)\
           else if (/(\d{8})/.test(s)) {
               return eval(s.replace(/(\d{4})(\d{2})(\d{2})/, "new Date($1,parseInt($2)-1,$3)"));
           else if (/(\d{4})[-/](\d{1,2})[-/](\d{1,2})[T\s](\d{1,2})\:(\d{1,2})(?:\:(\d{1,2}))?/.test(s)) {
               return eval(s.replace(/(\d{4})[-/](\d{1,2})[-/](\d{1,2})[T\s](\d{1,2})\:(\d{1,2})(?:\:(\d{1,2}))?[\w\W]*/, "new Date($1,parseInt($2)-1,parseInt($3),parseInt($4),parseInt($5),parseInt($6)||0)"));
           else if (/(\d{4})[-/](\d{1,2})[-/](\d{1,2})/.test(s)) {
               return eval(s.replace(/(\d{4})[-/](\d{1,2})[-/](\d{1,2})/, "new Date($1,parseInt($2)-1,$3)"));
           try {
               return new Date(s);
           } catch (e) {
               return null;
       return null;
   };
   

2. parseDate(date, format)

   Date.parseDate = function(date, format) {
     if (format === undefined)
       format = 'Y-m-d';
     var formatSeparator = format.match(/[.\/\-\s].*?/);
     var formatParts     = format.split(/\W+/);
     var parts           = date.split(formatSeparator);
     var date            = new Date();
     if (parts.length === formatParts.length) {
       date.setHours(0);
   ...
   

3. parseFromJsonFormat(dateStr)

   Date.parseFromJsonFormat = function(dateStr) {
       var str = dateStr.substring(6, dateStr.length - 2);
       return new Date(str * 1);
   };
   

4. setISO8601(timestamp)

   Date.prototype.setISO8601 = function (timestamp) {
    var match = timestamp.match(
     "^([-+]?)(\\d{4,})(?:-?(\\d{2})(?:-?(\\d{2})" +
     "(?:[Tt ](\\d{2})(?::?(\\d{2})(?::?(\\d{2})(?:\\.(\\d{1,3})(?:\\d+)?)?)?)?" +
     "(?:[Zz]|(?:([-+])(\\d{2})(?::?(\\d{2}))?)?)?)?)?)?$");
    if (match) {
     for (var ints = [2, 3, 4, 5, 6, 7, 8, 10, 11], i = ints.length - 1; i >= 0; --i)
      match[ints[i]] = (typeof match[ints[i]] != "undefined"
       && match[ints[i]].length > 0) ? parseInt(match[ints[i]], 10) : 0;
   ...
   

5. setISO8601(timestamp)

   Date.prototype.setISO8601 = function (timestamp) {
       var match = timestamp.match("^([-+]?)(\\d{4,})(?:-?(\\d{2})(?:-?(\\d{2})" +
           "(?:[Tt ](\\d{2})(?::?(\\d{2})(?::?(\\d{2})(?:\\.(\\d{1,3})(?:\\d+)?)?)?)?" +
           "(?:[Zz]|(?:([-+])(\\d{2})(?::?(\\d{2}))?)?)?)?)?)?$");
       if (match) {
           for (var ints = [2, 3, 4, 5, 6, 7, 8, 10, 11], i = ints.length - 1; i >= 0; --i)
               match[ints[i]] = (typeof match[ints[i]] != "undefined" && match[ints[i]].length > 0)
                   ? parseInt(match[ints[i]], 10)
                   : 0;
   ...
   

6. parseToDate()

   String.prototype.parseToDate = function () {
       var s = this.split("/");
       return s.length === 3 ? new Date(s[0], parseInt(s[1]) - 1, s[2]) : null;
   };
   

7. parseToDate()

   String.prototype.parseToDate = function() {
     var year = Number(this.substring(0, 4));
     var month = Number(this.substring(5, 7)) - 1;
     var date = Number(this.substring(8, 10));
     var hours = Number(this.substring(11, 13));
     var minutes = Number(this.substring(14, 16));                                                                                                  
       var result = new Date(year, month, date, hours, minutes,0,0);
       console.log(year);
       console.log(month);
   ...
   

8. parseDate()

   String.prototype.parseDate = function () {
       var monthArray = {'Jan':0, 'Feb':1, 'Mar':2, 'Apr':3, 'May':4, 'Jun':5, 'Jul':6, 'Aug':7, 'Sep':8, 'Oct':9, 'Nov':10, 'Dec':11};
       var dateArray = this.split('-');
       return new Date(dateArray[2], monthArray[dateArray[1]], dateArray[0]);
   };