Question

I have this function in JS and its a very strange because works with many dates but with one not..

I have two inputs and with jquery copy the first in the second if the second is minor or is null, and then if i put another greater date in the first, the second date changes to the same at the first.

But I have one case that the first input has 01/05/2013 and in the second has 31/05/2013, if i change the first to 01/06/2013 the second should be change at the same date, but dont do it..

And if with firebug i test it and this function

  obtenerFecha(fIni) > obtenerFecha(fFin) // obtenerFecha(01/06/2013) > obtenerFecha(31/05/2013)

returns false, and its true!

Here is my code if someone can help me..

    function copiarFecha(inicio,fin) {
        var fIni = $("#" + inicio).val();
        var fFin = $("#" + fin).val();
        if ((fFin == "") || obtenerFecha(fIni) > obtenerFecha(fFin)) {
            $("#" + fin).attr('value', fIni);
        }
        return true;
    }


    function obtenerFecha(strFecha) {
        var df = strFecha.split("/");
        if (isNaN(df[0]) || isNaN(df[1]) || isNaN(df[2]) || (df[0] > 31) || (df[1] > 12)) {
            cargaMensaje("KO", "La fecha no es correcta,revísela.");
            return false;
        }
        return new Date(df[2], df[1], df[0]);

Thanks.

Answer 1

You need to subtract 1 from the months. http://jsbin.com/eqozic/2/

month

Integer value representing the month, beginning with 0 for January to 11 for December.

https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Date