How to conduct arithmetic operations in JQuery?

Question

var price     = $(\'#addprice\').val();
var pass      = $(\'#pass\').val();
var total     = $(\'#totalprice\').attr(\'value\')
var left      = $(\'#leftquota\').attr         


        

Answer 1

Another option is to extend jQuery to be able to read numbers directly from form elements

jQuery.fn.numVal = function() {
    return parseFloat(this.val()) || 0;
}

   ....

  var price=$('#addprice').numVal();
  var pass=$('#pass').numVal()