arrays - how to sort milatry format date in javascript -


i want sort date in ascending order in javascript function.i having date in following format 3/4/2014 1300

im having follwing array contains date

categoriesdata.push(recorddate);                         categoriesdata.sort(function (a, b) {                             var key1 = a.recorddate;                             var key2 = b.recorddate;                              if (key1 < key2) {                                 return -1;                             } else if (key1 == key2) {                                 return 0;                             } else {                                 return 1;                             }                         })

categoriesdata have following record

3/4/2014 1300 2/4/2014 0000 1/31/2014 1030

now want sort these record in such way following output

1/31/2014 1030 2/4/2014 0000 3/4/2014 1300

you have split date string , parts using regex or simple split

   var date = "1/31/2014 1030".split(" ");    var day = parseint(date[0].split["/"][0], 10);    var month = parseint(date[0].split["/"][1], 10) - 1;    var year = parseint(date[0].split["/"][2], 10);    var hours = parseint(date[1].slice(0,2), 10);    var minutes = parseint(date[1].slice(2,4), 10);

then create date objects them in javascript.

   var dateobj = new date(year, month, day, hour);

then convert dates compared "milliseconds since beginning"

var milliseconds1 = date.parse(dateobj)

similarly convert both dates compared in milliseconds, have 2 numbers can compared

incorporate idea sort function.

categoriesdata.push(recorddate); categoriesdata.sort(function (a, b) {     var key1 = a.recorddate;     var key2 = b.recorddate;     var gettimestamp = function (datestring) {         var date = datestring.split(" ");         var day = parseint(date[0].split["/"][0], 10);         var month = parseint(date[0].split["/"][1], 10) - 1;         var year = parseint(date[0].split["/"][2], 10);         var hours = parseint(date[1].slice(0, 2), 10);         var minutes = parseint(date[1].slice(2, 4), 10);          return date.parse(new date(year, month, day, hour));     }     key1 = gettimestamp(key1);     key2 = gettimestamp(key2);     if (key1 < key2) {         return -1;     } else if (key1 == key2) {         return 0;     } else {         return 1;     } })

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