Question

I have this code , it is reading the value from a text box, I thought checking for ” before trying to parseInt() would be safe , but apparently not.

I am getting the error:

Uncaught TypeError: Cannot call method ‘toLowerCase’ of undefined

With this code:

            var total = 0;
            $.each('.reg-input', function () {
                if ($(this).val() == '') {
                }
                else {
                    total += parseInt($(this).val());  //this line throwing error
                }                    
            });
            if (total == 0) {
                $('.RegisterContainer').hide();                    
            }

Answer 1

'.reg-input' is a string, this in that case will also be a string, not a dom element. Try this instead:

$('.reg-input').each(function(){...