JavaScript does not always display the correct results for past day dates

I am trying to retrieve a date in the "YYYY-mm-dd" format from some days ago using the following function:

function getDifDate(d, numd) {
 d = stringToDate(d);
 d.setDate(d.getDate() - numd);
 return d;
}

Subsequently in another section of the program, I have written:

var tod = new Date();
switch(selPer.value) {
            case 1:         
                x= getDifDate(tod, 2);
                break;
            case 2:
                x= getDifDate(tod, 15);
                break;
            default:
                //default code block
        }
        console.log("Data1: "+ x);

The issue I am experiencing is that regardless of when I run the script, the value for x always returns as "25". What could be causing this inconsistency?

Any insights would be greatly appreciated.

javascriptdatedom

Answer №1

This code snippet is designed to function smoothly even without the dependency on DateJS

function calculateDateDifference(date, numDays) {
 date.setDate(date.getDate() - numDays);
 return date;
}

var result;
var today = new Date();
switch(1) {
            case 1:         
                result = calculateDateDifference(today, 2);
                break;
            case 2:
                result = calculateDateDifference(today, 15);
                break;
            default:
                //default implementation
        }

console.log("Updated Date: ", result);

To see this code in action, visit: http://plnkr.co/edit/gLwBIfAp7zFLEaV1KJ1O?p=preview

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