jQuery Validate (Date Range)

Question

Im using the jQuery validate plugin and was wondering if there was a way to validate if the date entered into a field was a date like yyyy-mm-dd AND the the date falls betwe

Answer 1

Hold your horses, guys! :)

Do not forget, that Date.parse cannot work properly with different locales, it only parses properly specific date format.

If you use various date formats (culture-specific) - it's better to stick to jquery datepicker date handling.

So, supposing you've loaded correct culture-specific jquery datepicker object (for instance, jquery.ui.datepicker-nb-NO.js, where date format is DD.MM.yyyy and is not parsed by Date.parse) and initialized it, proper approach is:

$.validator.addMethod('dateRange', function (value, element, parameterValue) {
        if (this.optional(element) && !value) {
            return true;
        }
        var dateFormat = $(element).datepicker('option', 'dateFormat');
        try {
            var startDate = $.datepicker.parseDate(dateFormat, parameterValue[0]).getTime();
            var endDate = $.datepicker.parseDate(dateFormat, parameterValue[1]).getTime();
            var enteredDate = $.datepicker.parseDate(dateFormat, value).getTime();
            return (startDate <= enteredDate) && (enteredDate <= endDate);
        } catch (error) {
            return true;
        }
    });

I've put parseDate stuff inside try block, because there's no normal way to figure out if the date has been parsed properly.