Javascript compare two dates to get a difference

Question

I am trying to compare two different dates to see if the date inputted is after 7 days of todays date. I have done a bit of googling and come up with this:

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Answer 1

Assuming that input is a valid Javascript Date object, you could perhaps try:

function dateDifference(oldDate) {
    var currentDate = new Date();
    var difference = currentDate - oldDate; //unit: milliseconds
    var numDays = 7;
    var threshHoldTime = numDays * (24 * 60 * 60 * 1000); //seven days in milliseconds
    if (difference > threshHoldTime ) {
        console.log("The difference is greateer then then 7 days");
    }
    else {
        console.log("the date is not enough: " + difference);
    }
}