Store Provision

   function solve(currentStock, orderedProducts) {
                let products = {};
                for (let i = 0; i < currentStock.length; i+=2) {
                    let productName = currentStock[i];
                    let productQuantity = Number(currentStock[i+1]);
                    products[productName] = productQuantity;
                }
                for (let i = 0; i < orderedProducts.length; i+=2) {
                    let productName = orderedProducts[i];
                    let productQuantity = Number(orderedProducts[i+1]);
                    if (products.hasOwnProperty(productName)) {
                        products[productName]+=productQuantity;
                    } else {
                        products[productName] = productQuantity;
                    }
                }
               for (let key in products) {
                   console.log(`${key} -> ${products[key]}`);
               }
            }