Function only accepting future dates, want both future and current?

Question

In my form, I only want the date entered to be either today or the future. The function I'm using only accepts the future, and I can't figure out why?

//This function checks whether the input date is today or the future

function isFutureDate(idate) {
    var today = new Date().getTime(),
        idate = idate.split("/");

    idate = new Date(idate[2], idate[1] - 1, idate[0]).getTime();
    return (idate - today) >= 0 ? true : false;
}

A separate function calling on a RegEx and the above function:

function checkDate() {
    var redate = /((0)[1-9]|(1)[0-9]|(2)[0-9]|(3)[0-1])[\/](0[1-9]|1[012])[\/](20)(1)[4-7]/;
    var valid = true;
    var idate = document.getElementById("date");

    if (redate.test(idate.value)) {
        if (isFutureDate(idate.value)) {
            idate.style.border = "1px inset #EBE9ED";
            idate.style.borderRadius = "2px";
            document.getElementById("datewarn").style.display = "none";
        } else {
            idate.style.border = "1px solid red";
            idate.style.borderRadius = "2px";
            document.getElementById("datewarn").style.display = "none";
        }
    } else {
        idate.style.border = "1px solid red";
        document.getElementById("datewarn").innerHTML = "Enter a date in the format DD/MM/YYYY.";
        idate.title = "Please enter a date in the format DD/MM/YYYY.";
        document.getElementById("datewarn").style.display = "block";
        valid = false;
    }
}

HTML code for Date Input:

<input type="text" id="date" placeholder="DD/MM/YYYY" onkeyup="checkDate()">

possible duplicate of [Comparing date part only without comparing time in javascript](http://stackoverflow.com/questions/2698725/comparing-date-part-only-without-comparing-time-in-javascript) — epascarello, Feb 03 '14 at 17:18

score 1 · Accepted Answer · answered Feb 03 '14 at 17:17

Try normalising the dates

function isFutureDate(idate) {
  var today = new Date(), idateParts = idate.split("/");
  today.setHours(12,0,0,0); // or 0,0,0,0 depending on preference
  idate = new Date(idateParts[2], idateParts[1] - 1, idateParts[0],12,0,0,0).getTime();

score 0 · Answer 2 · answered Feb 03 '14 at 17:16

0

Because the current time has hours/minutes/seconds/milliseconds and the time entered by the string is based off of midnight.

answered Feb 03 '14 at 17:16

epascarello

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Function only accepting future dates, want both future and current?

2 Answers2