My array's values get deleted automatically and can't get to know why.
I am working on a e-commerce website for a client and I am working on cart feature. My app connects to the Mongodb using mongoose, i have passport for authentication. When i hit '/cart' route, my code finds the user from the mongodb database using it's username stored in cookie, then go through the 'inCart' field and fetch the product's document id's after which i use findById to find that product and save it into a array the code works till here and my array holds the documents but as soon as my findById loop exits, the array is empty again IDK why.
I have spent so much time figuring the why but i can't get to the answer and so any solution is a huge thanks.
My App Js - cart route code:
array has values till line number 18, and then from line 20 array gets empty
app.get("/cart", function (req, res){
var userID = req.cookies["userEmail"];
var cartProducts = [];
User.findOne({username: userID}, function (err, user){
if (err){
console.log(err);
} else {
user['inCart'].forEach(function (productId) {
Product.findById(productId, function (err, doc){
if (err) {
console.log(err);
} else {
// console.log(doc)
cartProducts.push(doc);
// console.log(cartProducts)
};
// console.log(cartProducts) - works
});
// console.log(cartProducts); - not working from here
});
};
});
// console.log(cartProducts)
res.render("cart", { cart: cartProducts })
});
Results:
