Counter
Sat Mar 27 2021 13:23:33 GMT+0000 (UTC)
Saved by
@erfan
#javascript
#counter
#timer
function animationInterval(ms, signal, callback) {
// Prefer currentTime, as it'll better sync animtions queued in the
// same frame, but if it isn't supported, performance.now() is fine.
const start = document.timeline
? document.timeline.currentTime
: performance.now();
function frame(time) {
if (signal.aborted) return;
callback(time);
scheduleFrame(time);
}
function scheduleFrame(time) {
const elapsed = time - start;
const roundedElapsed = Math.round(elapsed / ms) * ms;
const targetNext = start + roundedElapsed + ms;
const delay = targetNext - performance.now();
setTimeout(() => requestAnimationFrame(frame), delay);
}
scheduleFrame(start);
}
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