Date-time comparison code in JavaScript

For example, date 1 is 2009-8-1, date 2 is 2009-7-1.

Using the Split function to slice,

Method 1

The code is as follows	Copy Code
<script> var d1= "2009-8-1"; var d2= "2009-7-15"; D1arr=d1.split ('-'); D2arr=d2.split ('-'); V1=new Date (d1arr[0],d1arr[1],d1arr[2]); V2=new Date (d2arr[0],d2arr[1],d2arr[2]); alert (V1>V2); </script>

Method 2

JS Date comparison (YYYY-MM-DD)

The code is as follows	Copy Code
function Duibi (A, b) { var arr = a.split ("-"); var starttime = new Date (arr[0], arr[1], arr[2]); var starttimes = Starttime.gettime (); var arrs = B.split ("-"); var lktime = new Date (Arrs[0], arrs[1], arrs[2]); var lktimes = Lktime.gettime (); if (starttimes >= lktimes) { Alert (' Start time is greater than departure time, please check '); return false; } Else return true; }

Example 1

The code is as follows

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<script language= "JavaScript" > function test (STR1,STR2) { var D1 = new Date (STR1); var d2 = new Date (STR2); if (Date.parse (D1)-Date.parse (D2) ==0) { Alert (str1+ "equals" +str2) } if (Date.parse (D1)-Date.parse (D2) <0) { Alert (str1+ "earlier than" +STR2) } if (Date.parse (D1)-Date.parse (D2) >0) { Alert (str1+ "later than" +STR2) } } </script> <input type= "button" value= "OK" onclick= "Test (' 2002/4/12 ', ' 2006/4/12 ')" >

JS Time comparison (Yyyy-mm-dd Hh:mi:ss) with the operation of the banknote

The code is as follows

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function Comptime () { var begintime = "2009-09-21 00:00:00"; var endtime = "2009-09-21 00:00:01"; var begintimes = begintime.substring (0). Split ('-'); var endtimes = endtime.substring (0). Split ('-'); BeginTime = begintimes[1] + '-' + begintimes[2] + '-' + begintimes[0] + ' + begintime.substring (10, 19); Endtime = endtimes[1] + '-' + endtimes[2] + '-' + endtimes[0] + ' + endtime.substring (10, 19);     alert (begintime + "AAA" + endtime);     alert (Date.parse (Endtime));     alert (Date.parse (begintime));     var a = (Date.parse (endtime)-Date.parse (BeginTime))/3600/1000;     if (a < 0) {         alert ("Endtime small!");    } else if (a > 0) {         alert ("Endtime big!");    } else if (a = = 0) {         alert ("Equal time!");    } else {         return ' exception '     } }