Optional
blockingOptional
dataUsed for "database" commands to enforce type checking.
Private
loggerMaximum number of parameters allowed. -1 for no maximum.
Minimum number of parameters require.
Optional
pubUsed when PUB/SUB is in effect.
Optional
signSign is used in commands with a compliment command. The only current example is INCR/DECR. Sign is 1 for INCR and -1 for DECR
Optional
txUsed in transactions to enqueue a command.
Every command must implement the execute method.
Available since 1.0.0.
SADD key member [member ...]
Add the specified members to the set stored at key. Specified members that are already a member of this set are ignored. If key does not exist, a new set is created before adding the specified members.
An error is returned when the value stored at key is not a set.
Return value
Integer reply: the number of elements that were added to the set, not including all the elements already present into the set.
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