setInterval
A JavaScript timer API that repeatedly executes a callback at fixed intervals, but does not guarantee precise intervals; a large number of timers increases the burden on the event loop.
Timeline (last 90 days)
Driving each clock separately with setInterval would cause 500 independent timers to queue up individually, and when callbacks pile up the event loop burden is considerable; a more reasonable approach is to drive all clocks with a single unified requestAnimationFrame loop and batch-update them based on elapsed time.
setInterval has the timer thread push callbacks into the task queue at fixed intervals, the intervals are imprecise, and each timer queues independently; requestAnimationFrame aligns callbacks with the browser's display refresh rhythm (typically 60 Hz, about once every 16.7 ms), executes only once per frame, and automatically pauses when the tab is not visible to reduce background power consumption.
All Facts (2)
Driving each clock separately with setInterval would cause 500 independent timers to queue up individually, and when callbacks pile up the event loop burden is considerable; a more reasonable approach is to drive all clocks with a single unified requestAnimationFrame loop and batch-update them based on elapsed time.
50%UnverifiedsetInterval has the timer thread push callbacks into the task queue at fixed intervals, the intervals are imprecise, and each timer queues independently; requestAnimationFrame aligns callbacks with the browser's display refresh rhythm (typically 60 Hz, about once every 16.7 ms), executes only once per frame, and automatically pauses when the tab is not visible to reduce background power consumption.
50%