Hi all
I am working on a shopping site and I am trying to calculate the subtotal of products.
I got my price from a array and quantity from getJSON response array. Two of them multiply
comes to my subtotal. I can change the quantity and it will comes out different subtotal.
However,when I change the quantity to certain number, the final subtotal is like
259.99999999994 or some long decimal number. I use console.log to check the $price and $qty. Both of them are in the correct format ex..299.99 and 6 quantity.I have no idea what happen. I would appreciate it if someone can help me about it.
Here is my Jquery code.
$(".price").each(function(index, price){
$price=$(this);
//get the product id and the price shown on the page
var id=$price.closest('tr').attr('id');
var indiPrice=$($price).html();
//take off $
indiPrice=indiPrice.substring(1)
//make sure it is number format
var aindiPrice=Number(indiPrice);
//push into the array
productIdPrice[id]=(aindiPrice);
var url=update.php
$.getJSON(
url,
{productId:tableId, //tableId is from the other jquery code which refers to
qty:qty}, productId
function(responseProduct){
$.each(responseProduct, function(productIndex, Qty){
//loop the return data
if(productIdPrice[productIndex]){
//get the price from the previous array we create X Qty
newSub=productIdPrice[productIndex]*Number(Qty);
//productIdPrice[productIndex] are the price like 199.99 or 99.99
// Qty are Quantity like 9 or 10 or 3
sum+=newSub;
newSub.toFixed(2); //try to solve the problem with toFixed but
didn't work
console.log("id: "+productIdPrice[productIndex])
console.log("Qty: "+Qty);
console.log(newSub); **//newSub sometime become XXXX.96999999994**
};
Thanks again!
