JavaScript date format (JS dates formatted)

Source: Internet
Author: User
Tags knowledge base

Method One: This is very good, it seems that Csdn's Meizz wrote:

//An extension to date that converts date to a string of the specified format//the Month (m), Day (d), hour (h), Minute (m), second (s), quarter (q) can be used with 1-2 placeholders,//year (Y) can use 1-4 placeholders, milliseconds (S) with only 1 placeholders (1-3 digits)//Example://(New Date ()). Format ("Yyyy-mm-dd hh:mm:ss. S ") ==> 2006-07-02 08:09:04.423//(New Date ()). Format ("yyyy-m-d h:m:s.s") ==> 2006-7-2 8:9:4.18Date.prototype.Format =function(FMT) {//Author:meizz  varo = {       "m+": This. GetMonth () +1,//Month"D+": This. GetDate (),//Day"H +": This. GetHours (),//hours"m+": This. getminutes (),//points"S+": This. getseconds (),//seconds"q+": Math.floor (( This. GetMonth () +3)/3),//Quarterly "S": This. Getmilliseconds ()//milliseconds  }; if(/(y+)/. Test (FMT) FMT=fmt.replace (Regexp.$1, ( This. getFullYear () + ""). substr (4-regexp.$1. length));  for(varKincho)if(NewRegExp ("(" + K + ")"). Test (FMT) FMT= Fmt.replace (regexp.$1, (regexp.$1.length==1)? (O[k]): (("XX" + o[k]). substr ("" +o[k])); returnFMT; }  

Call:

var New Date (). Format ("Yyyy-mm-dd HH:mm:ss");        var New Date (). Format ("Yyyy-mm-dd");  

Method Two:

<mce:script language= "<a href=" http://lib.csdn.net/base/javascript "class= ' Replace_word ' title=" javascript Knowledge Base "target= ' _blank ' style= ' color: #df3434 ; Font-weight:bold; ' >JavaScript</a> "type=" Text/javascript "><!--        /** * For the extension of date, convert date to a specified format of string * months (M), Day (d), 12 hours (h), 24 hours (h), minutes (m), seconds (s), Weeks (E), quarter (q) can use 1-2 placeholders * Year (Y) can be used with 1-4 placeholders, milliseconds (S) can only be used with 1 placeholders (1-3 digits) * Eg: * (new Date ()). Pattern ("Yyyy-mm-dd hh:mm:ss.        S ") ==> 2006-07-02 08:09:04.423 * (New Date ()). Pattern (" Yyyy-mm-dd E HH:mm:ss ") ==> 2009-03-10 II 20:09:04 * (new Date ()). Pattern ("Yyyy-mm-dd EE hh:mm:ss") ==> 2009-03-10 Tuesday 08:09:04 * (new Date ()). Pattern ("yyyy-mm- DD EEE hh:mm:ss ") ==> 2009-03-10 Tuesday 08:09:04 * (New Date ()). Pattern (" yyyy-m-d h:m:s.s ") ==> 2006-7-2 8:9:4.1 8*/Date.prototype.pattern=function(FMT) {varo = {               "m+": This. GetMonth () +1,//Month"D+": This. GetDate (),//Day"H +": This. getHours ()%12 = = 0? 12: This. GetHours ()%12,//hours"H +": This. GetHours (),//hours"m+": This. getminutes (),//points"S+": This. getseconds (),//seconds"q+": Math.floor (( This. GetMonth () +3)/3),//Quarterly "S": This. Getmilliseconds ()//milliseconds    }; varWeek = {               "0": "/u65e5",               "1": "/u4e00",               "2": "/u4e8c",               "3": "/u4e09",               "4": "/u56db",               "5": "/u4e94",               "6": "/U516D"              }; if(/(y+)/. Test (FMT)) {FMT=fmt.replace (Regexp.$1, ( This. getFullYear () + ""). substr (4-regexp.$1. length)); }               if(/(e+)/. Test (FMT)) {FMT=fmt.replace (regexp.$1, (regexp.$1.length>1)? (regexp.$1.length>2?) "/u661f/u671f": "/u5468"): "") +week[ This. GetDay () + ""]); }                for(varKincho) {                   if(NewRegExp ("(" + K + ")"). Test (FMT)) {FMT= Fmt.replace (regexp.$1, (regexp.$1.length==1)? (O[k]): (("XX" + o[k]). substr ("" +o[k])); }               }               returnFMT; }                varDate =NewDate (); Window.alert (Date.pattern ("Yyyy-mm-dd Hh:mm:ss")); //--></mce:script>

Method Three:

Date.prototype.format =function(mask) {varD = This; varZeroize =function(value, length) {if(!length) Length = 2; Value=String (value);  for(vari = 0, zeros = "; I < (length-value.length); i++) {Zeros+ = ' 0 '; }                       returnZeros +value;                     }; returnMask.replace (/"[^"]* "|" [^ ']* ' |/b (?:d {1,4}|m{1,4}|yy (?: yy)? | ([HHMSTT])/1?| [LLZ]) /b/g, function ($) {Switch($) {                            Case' d ':returnd.getdate ();  Case' DD ':returnzeroize (D.getdate ());  Case' DDD ':return[' Sun ', ' Mon ', ' Tue ', ' Wed ', ' Thr ', ' Fri ', ' Sat '][d.getday ()];  Case' dddd ':return[' Sunday ', ' Monday ', ' Tuesday ', ' Wednesday ', ' Thursday ', ' Friday ', ' Saturday '][d.getday ()];  Case' M ':returnD.getmonth () + 1;  Case' MM ':returnZeroize (D.getmonth () + 1);  Case' MMM ':return[' Jan ', ' Feb ', ' Mar ', ' Apr ', ' may ', ' June ', ' Jul ', ' April ', ' Sep ', ' Oct ', ' Nov ', ' Dec '][d.getmonth ()];  Case' MMMM ':return[' January ', ' February ', ' March ', ' April ', ' may ', ' June ', ' July ', ' August ', ' September ', ' October ', ' November ', ' December '][d.getmonth ()];  Case' yy ':returnString (D.getfullyear ()). substr (2);  Case' YYYY ':returnd.getfullyear ();  Case' H ':returnD.gethours ()% 12 | | 12;  Case' HH ':returnZeroize (d.gethours ()% 12 | | 12);  Case' H ':returnd.gethours ();  Case' HH ':returnzeroize (D.gethours ());  Case' m ':returnd.getminutes ();  Case' mm ':returnzeroize (D.getminutes ());  Case' s ':returnd.getseconds ();  Case' SS ':returnzeroize (D.getseconds ());  Case' L ':returnZeroize (D.getmilliseconds (), 3);  Case' L ':varm =d.getmilliseconds (); if(M > mm) m = Math.Round (M/10); returnzeroize (m);  Case' TT ':returnD.gethours () < 12? ' Am ': ' PM ';  Case' TT ':returnD.gethours () < 12? ' AM ': ' PM ';  Case' Z ':returnD.toutcstring (). Match (/[a-z]+$/); //Return quoted strings with the surrounding quotes removed                   default:return$0.SUBSTR (1, $0.length-2);               }                   });      }; 

Reference: Vbangle's column JavaScript date format (JS date formatting)

JavaScript date format (JS dates formatted)

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.