How to add days to date in jquery

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$("#txtcredit_periodform").on("change paste keyup", function () {
           // alert($(this).val());
           debugger;
           var someDate = new Date($('#txt_invdateform').val());
           var numberOfDaysToAdd = $(this).val();
           someDate.setDate(someDate.getDate() + numberOfDaysToAdd);
           var date = someDate.getMonth() + '/' + someDate.getDate() + '/' + someDate.getFullYear();
           $('#txtcredit_dateform').val(date);


       });

What I have tried:

I want to add days to selected date which will reflect in another textbox as new date. though the code is working but calculation goes wrong. please help

Posted 26-Feb-17 22:20pm

Member 10549697

Updated 26-Feb-17 22:39pm

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Comments

Michael_Davies 27-Feb-17 4:39am

What do you mean by the code works but the calculation goes wrong, show an example.

Member 10549697 27-Feb-17 4:53am

it takes the date into mm dd yy format.i don't know what exactly happens.but it shows wrong date

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Thomas Daniels · Accepted Answer · 2017-02-26T22:39:00

I suspect that numberOfDaysToAdd is a string... then if, for example, someDate.getDate() is 27 and numberOfDaysToAdd is "5", then someDate.getDate() + numberOfDaysToAdd) will be "275" rather than 32.

Parse the value to an integer before adding it up to the getDate() return value:

JavaScript

var numberOfDaysToAdd = parseInt($(this).val(), 10);
if (isNaN(numberOfDaysToAdd)) {
  // invalid number; show an error message
  return;
}
// continue with the calculations