function bookRentData(bookData) { bookData.forEach((book) => { //generate random sku number const sku = book.sku var random = sku[Math.floor(Math.random() * sku.length - 1)]; document.getElementById("message").innerHTML = sku[random]; }); wrap.innerHTML += `<tr> <td>${book.sku}</td> <td>${book.price}</td> </tr>` }