Store Provision JS Fundamentals

function storeProvision(currentStock, orderedProducts) {
    let productsInStore = {};
    let currentStockLength = currentStock.length;
    let orderedProductsLength = orderedProducts.length;

    for (let i = 0; i < currentStockLength; i += 2) {
        let currentProduct = currentStock[i];
        productsInStore[currentProduct] = Number(currentStock[i + 1]);
    }
    for (let i = 0; i < orderedProductsLength; i += 2) {
        let currentProduct = orderedProducts[i];

        if (!productsInStore.hasOwnProperty(currentProduct)) {
            productsInStore[currentProduct] = 0;
        }
        productsInStore[currentProduct] += Number(orderedProducts[i + 1]);
    }
    for (let product in productsInStore) {
        console.log(`${product} -> ${productsInStore[product]}`);
    }
}