// Open the the product listing page using a browser-based driver (CDP) // This allows Ferret to execute JavaScript and work with dynamic content let doc = DOCUMENT('https://mockery.ferretlang.org/scenarios/dynamic-products/basic/', { driver: 'cdp' }) // Wait until at least one product card is present on the page // This is important because the page loads content asynchronously // WAITFOR VALUE accepts any non-NONE candidate; WHEN keeps polling until this list is non-empty let products = waitfor value doc[~ css`.product-card`] when LENGTH(.) > 0 timeout 5000 // Iterate over each product card and extract useful data return for product in products return { brand: product[~? css`.product-brand`].textContent, title: product[~? css`.product-title`].textContent, price: TO_FLOAT(SUBSTITUTE(product[~? css`.product-price`], '$', '')) on error return 0 }