jquery - Return number of non-empty inputs in a table -

is there way can return number of non-empty inputs in table?

so far have tried:

$("#template_item_table").find('input:number[value=""]').length

but keeps giving me

uncaught error: syntax error, unrecognized expression: unsupported pseudo: number(…).

here's input:

<input type="number" class="form-control quantity" name="quantity" min="1">

can help?

try use .filter @ context

var len = $("#template_item_table").find('input[type=number]').filter(function(){   return this.value.trim().length > 0; }).length;  console.log(len + "non empty number text boxes there!!"); 

to filter out non empty number text boxes inside table #template_item_table