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HomeWeb Front-endJS TutorialConvert js string date yyyy-MM-dd to date sample code_javascript skills

Recently I encountered a problem, that is, when getting the date in the form and transmitting it to the background through json, the Date.parse(str) function reported an error under ff: NAN

After looking for some information, I found that the reason is The Date.parse() function has requirements for date format: For details, refer to the Date.parse function

For js operation date:

Create a date object:

var objDate=new Date([arguments list]);

The parameter forms are as follows:

Copy code The code is as follows:

view plainnew Date("month dd,yyyy hh:mm:ss");
new Date("month dd,yyyy");
new Date(yyyy,mth, dd,hh,mm,ss);
new Date(yyyy,mth,dd);
new Date(ms);

Description:

month: Represents the month name in English, from January to December
mth: Represents the month as an integer, from 0 (January) to 11 (December)
Content

dd: Represents the first day of the month Days, from 1 to 31
yyyy: Four-digit year
hh: Hours, from 0 (midnight) to 23 (11 p.m.)
mm: Minutes, from 0 to 59 Integer
ss: number of seconds, integer from 0 to 59
ms: number of milliseconds, an integer greater than or equal to 0, indicating the difference between the time to be created and GMT time January 1, 1970 number of milliseconds.

I found out:

The date construction in Javascript can also support new Date("yyyy/MM/dd"); where: MM is an integer representing the month from 0 (January) to 11 (December), so it is very convenient to use regular expressions to convert string dates.

Test code:
Copy code The code is as follows:



Output result:

Tue Feb 3 00: 00:00 UTC 0800 2009
Tue Feb 3 10:52:03 UTC 0800 2009

Tue Feb 3 00:00:00 UTC 0800 2009
Tue Feb 3 10:52:03 UTC 0800 2009

Tue Feb 3 00:00:00 UTC 0800 2009
Tue Feb 3 10:52:03 UTC 0800 2009
NaN
NaN
Tue Feb 3 00:00: 00 UTC 0800 2009

Tue Feb 3 00:00:00 UTC 0800 2009
Tue Feb 3 11:12:13 UTC 0800 2009
NaN
-------- -----------
Copy code The code is as follows:

window .onload=function(){
var dependentVal="2005-3-4";
//Convert to date based on date string
var regEx = new RegExp("\-","gi" ;
//parse requires the format of 2005/3/4
var milliseconds=Date.parse(dependedVal);
alert(milliseconds)
var dependentDate=new Date();
dependedDate .setTime(milliseconds);

var now = new Date();
//Pay attention to the brackets, priority issues, helplessness
alert("Years apart:" (now.getFullYear() - dependedDate.getFullYear()));
}


In fact, the date must be transmitted between the browser and the server through the millisecond value, otherwise a 400 error will be reported!
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