Compare two date formats in javascript jquery

Question

I have the following     var fit start time        fit start time   val      2013-09-5 var fit end time          fit end time   val      2013-09-10  if Date parse fit start time  gt  Date parse fit end time        alert  Please select a different End Date         The above code doesn t work  Is there any other solution to the above one   formatting date as per Where can I find documentation on formatting a date in JavaScript  also dint work for me

User · Answer

To comapre dates of string format  mm-dd-yyyy        var job start date    10-1-2014      Oct 1  2014     var job end date    11-1-2014      Nov 1  2014     job start date   job start date split  -        job end date   job end date split  -         var new start date   new Date job start date 2  job start date 0  job start date 1        var new end date   new Date job end date 2  job end date 0  job end date 1         if new end date  lt   new start date             your code

User · Answer

Try it the other way   var start date        fit start time   val      05-09-2013 var end date          fit end time   val      10-09-2013 var format  dd-MM-y       var result  compareDates start date format end date format       if result  1     end date is less than start date                   alert  End date should be greater than Start date             OR  if new Date start date   gt   new Date end date         alert  End date should be greater than Start date

User · Answer

try with new Date obj  getTime    if  new Date fit start time  getTime    gt  new Date fit end time  getTime           alert fit start time     is greater        your code   else if  new Date fit start time  getTime    lt  new Date fit end time  getTime           alert fit end time     is greater        your code   else       alert  both are same        your code

User · Answer

As in your example  the fit start time is not later than the fit end time   Try it the other way round   var fit start time        fit start time   val      2013-09-5 var fit end time          fit end time   val      2013-09-10  if Date parse fit start time   lt   Date parse fit end time        alert  Please select a different End Date         Update  Your code implies that you want to see the alert with the current variables you have  If this is the case then the above code is correct  If you re intention  as per the implication of the alert message  is to make sure their fit start time variable is a date that is before the fit end time  then your original code is fine  but the data you re getting from the jQuery  val   methods is not parsing correctly  It would help if you gave us the actual HTML which the selector is sniffing at

User · Answer

It s quite simple   if new Date fit start time   lt   new Date fit end time      compare end  lt    not  gt         your code here     Comparing 2 Date instances will work just fine  It ll just call valueOf implicitly  coercing the Date instances to integers  which can be compared using all comparison operators  Well  to be 100  accurate  the Date instances will be coerced to the Number type  since JS doesn t know of integers or floats  they re all signed 64bit IEEE 754 double precision floating point numbers

User · Answer

This is already in     Age from Date of Birth using JQuery  or alternatively u can use Date parse   as in   var date1   new Date  10 25 2011    var date2   new Date  09 03 2010    var date3   new Date Date parse date1  - Date parse date2

[javascript] Compare two date formats in javascript/jquery

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