datepicker Validation

datepicker Validation

Hi All,

Help me,


<div class="input-group m-b bootstrap-touchspin">
<i class="fa fa-calendar input-group-addon"></i>
<input id="ActualDeliveryDate" type="text" class="form-control datepicker" maxlength="10" data-attr="ActualDeliveryDate" placeholder="mm/dd/yyyy">
</div>
</div>

In the above code ,i need validation, if i select date=08/03/2017 after getting current date if i modify date=0/0/0 .

It Should fire Validation error  ,that given date is not valid. 

hope you understand ,what i mean.

Thanks & Regards,

Learner.