// Define a generator function
        function* simpleGenerator() {
            yield 1;
            yield 2;
            yield 3;
        }

        // Create an iterator from the generator
        const iterator = simpleGenerator();

        console.log(iterator.next().value); // Output: 1
        console.log(iterator.next().value); // Output: 2
        console.log(iterator.next().value); // Output: 3
        console.log(iterator.next().done);  // Output: true