ZREVRANK key member
Time complexity: O(log(N))
Returns the rank of
member in the sorted set stored at
key, with the scores
ordered from high to low.
The rank (or index) is 0-based, which means that the member with the highest
score has rank
WITHSCORE argument supplements the command's reply with the score of the element returned.
ZRANK to get the rank of an element with the scores ordered from low to
memberexists in the sorted set Integer reply: the rank of
memberdoes not exist in the sorted set or
keydoes not exist Bulk string reply:
dragonfly> ZADD myzset 1 "one"
dragonfly> ZADD myzset 2 "two"
dragonfly> ZADD myzset 3 "three"
dragonfly> ZREVRANK myzset "one"
dragonfly> ZREVRANK myzset "four"