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Validate datepicker date in Jquery

In my last example, I had posted how to validate date in Jquery, but if you are using datepicker then you need not write a long script to validate date, instead you can easily validate date by using your jquery.ui.datepicker.js library itself.

function validateDate(ctrlClass, dateFormat) {
        var isValid = true;
        var date = $('.' + ctrlClass).val();
        var regexp = /^\d{1,2}\/\d{1,2}\/\d{4}$/;

        if (regexp.test(date)) {
            try {
                jQuery.datepicker.parseDate(dateFormat, date, null);
            }
            catch (error) {
                isValid = false;
            }
        }
        else {
            isValid = false;
        }
        return isValid;
    }

You just need to pass control class name on which you want to perform validation with date format(i.e. 'mm/dd/yyyy' etc.)
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