Question

I have sample html code:

<div class="category">
     <div class="product">
         <!-- some product info -->
         <input type="text" value="0" /> <!-- it is quantity -->
     </div>
<!-- ... other products -->
</div>
<!-- ... other categories -->

So I need to get all categories using jQuery, where at least one product has positive quantity.

Something looks like this (in C#)

var filteredCategories = categories.Where(c => c.Products.Any(p => p.Quantity !=0));

how to do it using jQuery?

Answer 1

$('.product', '.category').filter(function() {
    return parseint($(this).children('input[type="text"]').val(),10) !== 0;
}).dosomething();

You should consider adding a class to the quantity input to target it, as any other text inputs inside the .product element would also be selected with this method.