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SSCAN

Incrementally iterates over the elements of a set.

Syntax​

SSCAN key cursor [MATCH pattern] [COUNT count]

Details​

  • Available since: 2.8.0
  • Time complexity: O(1) for every call. O(N) for a full iteration, where N is the number of elements inside the collection.
  • ACL categories: @read, @set, @slow

Example​

Assume we have a set called myset with members "member1", "member2", and "member3":

SADD myset "member1" "member2" "member3"

Now, let's scan myset:

SSCAN myset 0

This might output something like:

1) "0"
2) 1) "member1"
   2) "member2"
   3) "member3"

RESP2/RESP3 Reply​

Array reply: a two-element array containing the next cursor and an array of elements.