How to count items in a range?

[vladar]

I am curious what is the best way to count items in a given range? Is it just db.getKeys({ start, end }), iterating over those and counting? Or maybe there is a more efficient method that I am missing?

[kriszyp]

A dedicated method for this would certainly be much faster than iterating through the keys and incurring key conversion cost. I'll take a stab at putting one together.

[vladar]

Awesome! Now it got me thinking if we could get this method for dupSort databases (e.g. getValues with a range)?

[kriszyp]

Added getCount, getKeysCount, and getValuesCount in v1.5.2 (docs might come a little later, but it basically mirrors getRange, getKeys, and getValues).