Check if date is current date or future date with datetime as input

Question

I'm trying to check if the date entered in

datetime

field is a current or a future date. I've tried:

function validations(){

    var value=document.getElementById("showdate").value;

    if (new Date() > new Date(value)) {

        alert("Past date");

    }

}

<Form method="post" onsubmit="validations()" autocomplete>

    <input type="datetime-local" name="showdate" class="right" required="required" id="showdate">

    <input type="submit">

</form>

But this code will work only with the

date

field.

Recommended for you: Get network issues from WhatsUp Gold. Not end users.

Answer 1

Generally, in JS, to compare dates you should try:

function isFutureDate(value) {
    d_now = new Date();
    d_inp = new Date(value)
    return d_now.getTime() <= d_inp.getTime();
}

Run regular comparison operators on the getTime function of a Date object.

Check if date is current date or future date with datetime as input

Sign up