The code will log `{b: 2}`. This demonstrates the rest pattern in object destructuring. The syntax `...rest` collects all remaining properties (those not explicitly destructured) into a new object. In this case, the property `a` is extracted into its own variable, and all other properties (just `b` in this example) are collected into the `rest` object. This pattern is particularly useful when you want to extract some specific properties while keeping the rest of the object intact. It's often used in scenarios like removing certain properties before passing an object to another function, or when implementing functions that accept specific options but pass through any additional options to another component. The rest pattern must be the last element in a destructuring assignment, and there can only be one rest element.