JavaScript Custom Date function

1. Formatted Date (YYYY-MM-DD)

Code:

varDateFormat =function(date) {if(! (DateinstanceofDate)) {Date= Date.replace (/-/g, "/"); Date=Newdate (date); }    varmonth = Date.getmonth () + 1; varYear =date.getfullyear (); varDay =date.getdate (); if(Month < 10) {Month= "0" +month; }    if(Day < 10) { Day= "0" +Day ; }    returnYear + "-" + month + "-" +Day ;}

View Code

Example:

Alert (DateFormat (New Date ()));

Output: 2014-08-27

2. Get the current date and format

Code:
var GetDate = function () {
var date = new Date ();
return DateFormat (date);
}

Example:

var now = GetDate ();
$ (' input[name= ' EndTime "]). Val (now);

3. Date Added period (support increased year, month, week, day, hours, minutes, seconds)

Code:

functionDateAdd (type, number, date) {/** Function: Implement JavaScript's DateAdd function.      * Parameter: Type, string expression that represents the time interval to add.      * Parameter: number, numeric expression that indicates how many time intervals to add.      * Parameters: Date, Time object.      * Returns: the new Time object.      * var olddate = new Date ();      * var newdate = DateAdd ("D", 7,olddate); */    //d = new Date ();    if(! (DateinstanceofDate)) {Date= Date.replace (/-/g, "/"); Date=Newdate (date); }    Switch(type) { Case"Y": Date.setfullyear (date.getfullyear ()+Number );  Break;  Case"M": Date.setmonth (Date.getmonth ()+Number );  Break;  Case"W": Date.setdate (date.getdate ()+ Number * 7);  Break;  Case"D": Date.setdate (date.getdate ()+Number );  Break;  Case"H": Date.sethours (date.gethours ()+Number );  Break;  Case"M": Date.setminutes (date.getminutes ()+Number );  Break;  Case"S": Date.setseconds (date.getseconds ()+Number );  Break; default: Date.setdate (d.getdate ()+Number );  Break; }    returnDateFormat (date);}

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Example:

var now = GetDate ();

$ (' input[name= ' StartTime "]). Val (DateAdd (' d ', -8,now));//current date minus 8 days

$ (' input[name= ' StartTime "]). Val (DateAdd (' y ', 1,now));//Current date plus 1 years

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JavaScript Custom Date function