JS Processing Date

var mydate = new Date (); Mydate.getyear (); Current year (2-bit)
Mydate.getfullyear (); Get the full year (4-bit, 1970-????)
Mydate.getmonth (); Get the current month (0-11, 0 for January)
Mydate.getdate (); Get current day (1-31)
Mydate.getday (); Get Current week x (0-6, 0 for Sunday)
Mydate.gettime (); Gets the current time (the number of milliseconds since 1970.1.1)
Mydate.gethours (); Get current number of hours (0-23)
Mydate.getminutes (); Gets the current number of minutes (0-59)
Mydate.getseconds (); Gets the current number of seconds (0-59)
Mydate.getmilliseconds (); Gets the current number of milliseconds (0-999)
Mydate.tolocaledatestring (); Get Current date
var mytime=mydate.tolocaletimestring (); Get current time
Mydate.tolocalestring (); Get Date and time

Date-time Method extension

Date.prototype.isLeapYear Judging leap years

Date.prototype.isLeapYear = function () {return (0==this.getyear ()%4&& ((This.getyear ()%100!=0) | | (This.getyear ()%400==0)); }

Date.prototype.Format date Formatting

 1 Date.prototype.format = function (format) 2 {3                 var o = {4 "m+": This.getmonth () + 1,//month 5 "d+": This.getdate (),//day 6 "H +": this.gethours (),//hour 7 "m+": This.getminutes (),//minute 8 "s+": THIS.G Etseconds (),//second 9 "q+": Math.floor ((This.getmonth () + 3)/3),//quarter10 "S": Thi S.getmilliseconds ()//millisecond11}12 if (/(y+)/.test (format)) format = Format.replace (regexp.$1  , (This.getfullyear () + ""). substr (4-regexp.$1.length)), and the (var k in O) if (New RegExp (" + K + ")"). Test (format), format = Format.replace (regexp.$1,16 regexp.$1.length = = 1? o[k ]: ("XX" + o[k]). substr (("" + O[k]). (length)), return format;19}20 
   

Date.prototype.DateDiff Comparison Date Difference

　　

Daysbetween Date Days Difference

DATE.PROTOTYPE.DATEADD Date Calculation

//+--------------------------------------------------- //| Date Calculation//+---------------------------------------------------Date.prototype.DateAdd = function (strinterval, number) { var dttmp = this; Switch (strinterval) {case ' s ': return new Date (Date.parse (dttmp) + (* number)), Case ' n ': return new Date (Date.pars E (dttmp) + (60000 * number)); Case ' H ': return new Date (Date.parse (dttmp) + (3600000 * number)); Case ' d ': return new Date (Date.parse (dttmp) + (86400000 * number)); Case ' W ': Return new Date (Date.parse (dttmp) + ((86400000 * 7) * number)); Case ' Q ': return new Date (Dttmp.getfullyear (), (Dttmp.getmonth ()) + number*3, Dttmp.getdate (), dttmp.gethours (), Dttmp.getminutes (), dttmp.getseconds ()); Case ' m ': return new Date (Dttmp.getfullyear (), (Dttmp.getmonth ()) + number, dttmp.getdate (), dttmp.gethours (), Dttmp.getminutes (), dttmp.getseconds ()); Case ' Y ': Return new Date ((dttmp.getfullyear () + number), Dttmp.getmonth (), Dttmp.getdate (), dttmp.gethours (), Dttmp.getminutes (), dttmp.geTseconds ());  } }

　　

Date.prototype.toString Date to String

Date.prototype.toArray date split into arrays

　　

Date.prototype.DatePart Partial information of the date taken

　　

Date.prototype.MaxDayOfDate the maximum number of days in the month in which the date is taken

Date.prototype.WeekNumOfYear the week of the year in which the date is judged

//+--------------------------------------------------- //| Get the current date week is the week of the year//+---------------------------------------------------Date.prototype.WeekNumOfYear = function () {var mydate = this, var ary = Mydate.toarray (); var = ary[0]; var month = ary[1]+1; var day = ary[2]; document.write (' < script language=vbscript\> \ n '); document.write (' mydate = DateValue (' +month+ '-' +day+ '-' +year+ ') \ n '); document.write (' result = DatePart (' ww ', mydate) \ n '); document.write (' \ n '); return result; }

Stringtodate String to date type

Isvaliddate Verifying date Validity

Checkdatetime Full date and time check

　　

Compatibility processing under Firefox

Firefox's getyear function gets the value of the current year minus 1900

var today=New Date ();

Date=today.getdate ();

Month=today.getmonth ();

month=month+1;

if (month<=9)

Month= "0" +month;

Year=today.getyear ();

if (year<1900) year+=1900; Compatibility processing under Firefox

JS Processing Date