Class RateTracker

Tracks the rate of events. It's also able to compute the min,max and average interval between events.

Example

const clicks = Trackers.rate();

// Mark when a click happens
document.addEventListener(`click`, () => clicks.mark());

// Get details
clicks.perSecond; // How many clicks per second
clicks.perMinute; // How many clicks per minute
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timeoutInterval is a useful option to make the tracker reset after some period without mark() being called.

Another useful option is sampleLimit, which sets an upper bound for how many events to track. A smaller value means the results will more accurately track, but it might be less smooth.

// Eg reset tracker after 5 seconds of inactivity
const clicks = Trackers.rate({ 
 sampleLimit: 10,
 timeoutInterval: { secs: 5 }
});
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