BITCOUNT
Counts set bits in a string value.
Bitmaps · Example verified
Syntax covered here
BITCOUNT keyThe whole-value form is verified after enabling one bit with SETBIT.
Tested example & replies
Requests below run in order against an empty database. Each connection authenticates with the fixture password first. Quoted values are strings; null is a nil reply; arrays preserve RESP order.
# connection: default
> SETBIT bits 1 1
0
# connection: default
> BITCOUNT bits
1