The code snippet `product => product.id === id` is a...

The code snippet product => product.id === id is a JavaScript arrow function. Here's what it does:

• It defines a function with one argument, product.
• Inside the function, it checks whether the id property of the product object is strictly equal (===) to the variable id.

This function is typically used as a predicate (a function that returns a boolean value) in array operations like .find(), .filter(), or similar methods. For instance:

const products = [
  { id: 1, name: "Laptop" },
  { id: 2, name: "Phone" },
];

const id = 2;

// Using the arrow function with .find() to locate a product with id === 2
const result = products.find(product => product.id === id);

console.log(result); // { id: 2, name: "Phone" }

In this example, the function product => product.id === id checks each product in the products array to see if its id matches the variable id (which is 2), and .find() returns the first matching product.