Syntax
ZRANK key member
Return the rank of the member
in the sorted set. The member with the lowest score has rank 0.
127.0.0.1:6379> zrange set1 0 15 withscores 1) "eleven" 2) "1" 3) "one" 4) "1" 5) "six" 6) "1" 7) "seven" 8) "2" 9) "twelve" 10) "2" 11) "two" 12) "2" 13) "eight" 14) "3" 15) "thirteen" 16) "3" 17) "three" 18) "3" 19) "four" 20) "4" 21) "fourteen" 22) "4" 23) "nine" 24) "4" 25) "fifteen" 26) "5" 27) "five" 28) "5" 29) "ten" 30) "5" 127.0.0.1:6379> zrank set1 nine (integer) 11
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