Add the specified members to the set stored at
Specified members that are already a member of this set are ignored.
key does not exist, a new set is created before adding the specified
An error is returned when the value stored at
key is not a set.
@integer-reply: the number of elements that were added to the set, not including all the elements already present into the set.
>= 2.4: Accepts multiple
memberarguments. Redis versions before 2.4 are only able to add a single member per call.
SADD myset "Hello" SADD myset "World" SADD myset "World" SMEMBERS myset