Method: Redis::Commands::SortedSets#zpopmax

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

#zpopmax(key, count = nil) ⇒ Array<String, Float>+

Removes and returns up to count members with the highest scores in the sorted set stored at key.

Examples:

Popping a member

redis.zpopmax('zset')
#=> ['b', 2.0]

With count option

redis.zpopmax('zset', 2)
#=> [['b', 2.0], ['a', 1.0]]

Returns:

  • (Array<String, Float>) —

    element and score pair if count is not specified

  • (Array<Array<String, Float>>) —

    list of popped elements and scores



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# File 'lib/redis/commands/sorted_sets.rb', line 138

def zpopmax(key, count = nil)
  command = [:zpopmax, key]
  command << Integer(count) if count
  send_command(command) do |members|
    members = FloatifyPairs.call(members)
    count.to_i > 1 ? members : members.first
  end
end