Hello,
var dateValidator = function(value) {
var isValidDate = function(value){
//if check if value is a valide date return true;
else return false;
}
return (value == null || isValidDate (value));
}
chrisch wrote
> I'm trying to validate a DateField with a custom validation function that
> checks if the value of the field is parsed correctly into a Date Object
> and is not null. Here is my validation function:
>
> var dateValidator = function(value) {
> return (value != null);
> }
>
> That works fine so far. The problem is now that the field is not required,
> the user is allowed to leave it empty. But in this case the value is also
> null and I cannot determine if the field was intentionally left blank or
> if the parsing to a date object has failed, because the user has entered a
> bad string into the date field.
>
> Is there a way to validate it only if the user has entered something?
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