add const

Author: elfacu0

readme.md

@@ -304,7 +304,7 @@ class ProductService {
  //public method
  getPrice(productId) {
  const desiredProduct = DB.getProduct(productId);
- finalPrice = this.calculateVATAdd(desiredProduct.price).finalPrice;
+ const finalPrice = this.calculateVATAdd(desiredProduct.price).finalPrice;
  return finalPrice;
  }
 }