JavaScript - call another function once async method finished

Sample code   

<script>

        function sleep(ms) {

            return new Promise(resolve => setTimeout(resolve, ms));

        }

        async function demo() {

            console.log('Taking a break...');

            await sleep(2000);

            console.log('Two seconds later, showing sleep in a loop...');

            // Sleep in loop

            for (let i = 0; i < 5; i++) {

                if (i === 3)

                    await sleep(2000);

                console.log(i);

            }

        }

        function test() {

            console.log('---------<><><><><><><>----');

        }

        demo().then(() => test());

    </script>