Commented area updated

Instructional comments were removed, and my own comments were left with relevant details on the code. In hopes that it satisfies graders.

starter/src/assets/script.js

@@ -1,13 +1,7 @@
-/* Create an array named products which you will use to add all of your product object literals that you create in the next step. */
-
-/* Create 3 or more product objects using object literal notation 
-   Each product should include five properties
-   - name: name of product (string)
-   - price: price of product (number)
-   - quantity: quantity in cart should start at zero (number)
-   - productId: unique id for the product (number)
-   - image: picture of product (url string)
-*/
+
+// S h o p p i n g   C a r t  P r o j e c t
+
+// Product Array with product properties
 const products = [
     {
     name: "Carton of Cherries",
@@ -31,43 +25,33 @@ const products = [
     image: "https://github.com/vara-co/shopping-cart/blob/main/starter/src/images/orangessac2.jpg?raw=true"
   },
 ];
-/* Images provided in /images folder. All images from Unsplash.com
-   - cherry.jpg by Mae Mu
-   - orange.jpg by Mae Mu
-   - strawberry.jpg by Allec Gomes
-*/
-
-/* Declare an empty array named cart to hold the items in the cart */
 
+// Empty Cart array to hold products in the cart
 const cart = [];
 
+// H e l p e r   f u n c t i o n s
 // Helper function - finding products by productId
 function findProductsById(productId){
   return products.find(item => item.productId === productId);
 }
 
 // Helper function - finding product index in cart
 function findProductInCart(productId) {
-  return cart.find(item => item.productId ===productId);
+  return cart.find(item => item.productId === productId);
 }
 
 // Helper function - finding Product in Cart by Index
 function findProductCartByIndex (productId) {
   return cart.findIndex(item => item.productId === productId);
 }
 
-
-/* Create a function named addProductToCart that takes in the product productId as an argument
-  - addProductToCart should get the correct product based on the productId
-  - addProductToCart should then increase the product's quantity
-  - if the product is not already in the cart, add it to the cart
-*/
-
+// S h o p p i n g  C a r t  F u n c t i o n a l i t y
+// Function to add products to cart by the productId
 function addProductToCart(productId) {
   // finding product based on productID using helper function
   const product = findProductsById(productId); 
 
-  // Is the product in the products array
+  // Conditional to find product in cart
   if (product) {
     product.quantity += 1;
     // check if product is in cart, otherwise to push it
@@ -80,38 +64,30 @@ function addProductToCart(productId) {
   } 
 }
 
-/* Create a function named increaseQuantity that takes in the productId as an argument
-  - increaseQuantity should get the correct product based on the productId
-  - increaseQuantity should then increase the product's quantity
-*/
-
+// Function to INCREASE quantity of a product by productId
 function increaseQuantity(productId) {
   // finding product based on productID using helper function
   const product = findProductsById(productId); 
 
   // check if product in the products array, and if so, increment by one
   if (product) {
     product.quantity += 1;
-  } 
-}
+  }
 
-/* Create a function named decreaseQuantity that takes in the productId as an argument
-  - decreaseQuantity should get the correct product based on the productId
-  - decreaseQuantity should decrease the quantity of the product
-  - if the function decreases the quantity to 0, the product is removed from the cart
-*/
+}
 
+// Function to DECREASE the quantity of a product by productId
 function decreaseQuantity(productId) {
   // finding product based on productID using helper function
   const product = findProductsById(productId); 
 
-  // Check if product in the prod array, and if so, decrease by 1
+  // Conditional to check if product in the prod array, and if so, decrease by 1
   if (product) {
     if(product.quantity > 0) {
       product.quantity -= 1;
     }
 
-    // remove from cart if less than 0 products
+    // Conditional to remove item/container from cart if less than 0 products
     if (product.quantity === 0) {
       const productIndex = findProductCartByIndex (productId);
       if (productIndex !== -1) {
@@ -121,53 +97,40 @@ function decreaseQuantity(productId) {
   } 
 }
 
-/* Create a function named removeProductFromCart that takes in the productId as an argument
-  - removeProductFromCart should get the correct product based on the productId
-  - removeProductFromCart should update the product quantity to 0
-  - removeProductFromCart should remove the product from the cart
-*/
 
+// Function to REMOVE PRODUCT from cart by productId
 function removeProductFromCart(productId) {
   // finding product based on productID using helper function
   const product = findProductsById(productId); 
 
-  // if product exists, then
+  // Conditional to determine if product exists
   if (product) {
     product.quantity = 0;
 
-    // find and remove from cart
+    // Conditional to find and remove product from cart
     const productIndex = findProductCartByIndex (productId);
     if (productIndex !== -1) {
       cart.splice(productIndex, 1);
     }
   } 
 }
 
-/* Create a function named cartTotal that has no parameters
-  - cartTotal should iterate through the cart to get the total cost of all products
-  - cartTotal should return the total cost of the products in the cart
-  Hint: price and quantity can be used to determine total cost
-*/
 
+// Function to obtain the CART TOTAL 
 function cartTotal() {
   return cart.reduce((total, product) => {
     return total + product.price * product.quantity; 
   },0);
 }
 
-/* Create a function called emptyCart that empties the products from the cart */
-
+// Function to empty the products from the cart EMPTY CART
 function emptyCart() {
   cart.length = 0; // setting to 0 empties the cart
 }
 
-/* Create a function named pay that takes in an amount as an argument
-  - amount is the money paid by customer
-  - pay will return a negative number if there is a remaining balance
-  - pay will return a positive number if money should be returned to customer
-  Hint: cartTotal function gives us cost of all the products in the cart  
-*/
 
+// Function PAY taking amount as an argument.
+// This will determine the difference that needs to be returned to the shopper, or if they still owe
 function pay(amount) {
   // total price in cart
   const ttlCost = cartTotal();
@@ -179,14 +142,6 @@ function pay(amount) {
   return balance;
 }
 
-/* Place stand out suggestions here (stand out suggestions can be found at the bottom of the project rubric.)*/
-
-
-/* The following is for running unit tests. 
-   To fully complete this project, it is expected that all tests pass.
-   Run the following command in terminal to run tests
-   npm run test
-*/
 
 module.exports = {
    products,
@@ -198,6 +153,4 @@ module.exports = {
    cartTotal,
    pay, 
    emptyCart,
-   /* Uncomment the following line if completing the currency converter bonus */
-   // currency
 }