title: CodeHS JavaScript Timer- Countdown
body: <p>I work on CodeHS and need to make a countdown timer for my powerups in the game I'm making, Breakout. I need the timer to be reusable so no for loops, it needs to go down in seconds/milliseconds (it doesn't matter which) and preferably last 30 seconds or 30,000 milliseconds. Remember this is CodeHS I'm working on.</p>