## Timers ### setTimeout(callback, delay, [arg], [...]) To schedule execution of `callback` after `delay` milliseconds. Returns a `timeoutId` for possible use with `clearTimeout()`. Optionally, you can also pass arguments to the callback. ### clearTimeout(timeoutId) Prevents a timeout from triggering. ### setInterval(callback, delay, [arg], [...]) To schedule the repeated execution of `callback` every `delay` milliseconds. Returns a `intervalId` for possible use with `clearInterval()`. Optionally, you can also pass arguments to the callback. ### clearInterval(intervalId) Stops a interval from triggering.