Tell us what’s happening: I am stuck on step 18 of building a shopping cart and keep getting this prompt: “The callback function should return whether the id property of item is strictly equal to the id parameter passed to addItem .”
Your code so far
addItem(id, products) {
const product = products.find(item => item.id === addItem(item.id));
}
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Challenge Information:
Learn Basic OOP by Building a Shopping Cart - Step 18