Method: Redis::Commands::SortedSets#zrem

Defined in:
lib/redis/commands/sorted_sets.rb

#zrem(key, member) ⇒ Boolean, Integer

Remove one or more members from a sorted set.

Examples:

Remove a single member from a sorted set

redis.zrem("zset", "a")

Remove an array of members from a sorted set

redis.zrem("zset", ["a", "b"])

Parameters:

  • key (String)
  • member (String, Array<String>) —

    • a single member

    • an array of members

Returns:

  • (Boolean, Integer) —

    • ‘Boolean` when a single member is specified, holding whether or not it

    was removed from the sorted set

    • ‘Integer` when an array of pairs is specified, holding the number of

    members that were removed to the sorted set



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# File 'lib/redis/commands/sorted_sets.rb', line 107

def zrem(key, member)
  if member.is_a?(Array)
    members_to_remove = member
    return 0 if members_to_remove.empty?
  end

  send_command([:zrem, key, member]) do |reply|
    if member.is_a? Array
      # Variadic: return integer
      reply
    else
      # Single argument: return boolean
      Boolify.call(reply)
    end
  end
end