Commandszrandmember
ZRANDMEMBER
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Return random members
Example
| Command> | zadd mycity 10 Seoul 20 Busan 30 Daegu 40 Incheon 50 Gwangju 60 Gyeonggi |
| Result> | 6 |
| Command> | zrandmember mycity |
| Result> | Gyeonggi |
Return multiple members: count
Use the count option to return multiple members.
+count returns distinct members.
If count is larger than the set size, all members are returned.
-count may return duplicate members.
If count is larger than the set size, count members are returned (with duplicates).
The withscores option can be used only with count.
Example
| Command> | zrandmember mycity 3 |
| Result> |
1) "Gyeonggi" 2) "Seoul" 3) "Daegu" |
| Command> | zrandmember mycity -3 |
| Result> |
1) "Incheon" 2) "Incheon" 3) "Seoul" |
Syntax
ZRANDMEMBER key [count [withscores]]
- Available since version 6.2.0.
- Time complexity is O(N). N is the number of returned values.
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