framer-motion
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A simple and powerful JavaScript animation library
19 lines (17 loc) • 712 B
JavaScript
/**
* Take an array of times that represent repeated keyframes. For instance
* if we have original times of [0, 0.5, 1] then our repeated times will
* be [0, 0.5, 1, 1, 1.5, 2]. Loop over the times and scale them back
* down to a 0-1 scale.
*
* `repeatDelayUnits` is the repeatDelay expressed in units of a single
* iteration's duration, so the total span equals `(repeat + 1) + repeat * repeatDelayUnits`.
*/
function normalizeTimes(times, repeat, repeatDelayUnits = 0) {
const totalUnits = repeat + 1 + repeat * repeatDelayUnits;
for (let i = 0; i < times.length; i++) {
times[i] = times[i] / totalUnits;
}
}
export { normalizeTimes };
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