Method: Redis#zrange

Defined in:
lib/redis.rb

#zrange(key, start, stop, withscores: false, with_scores: withscores) ⇒ Array<String>, Array<[String, Float]>

Return a range of members in a sorted set, by index.

Examples:

Retrieve all members from a sorted set

redis.zrange("zset", 0, -1)
  # => ["a", "b"]

Retrieve all members and their scores from a sorted set

redis.zrange("zset", 0, -1, :with_scores => true)
  # => [["a", 32.0], ["b", 64.0]]

Parameters:

  • key (String)
  • start (Integer) —

    start index

  • stop (Integer) —

    stop index

  • options (Hash) —

    • ‘:with_scores => true`: include scores in output

Returns:

  • (Array<String>, Array<[String, Float]>) —

    • when ‘:with_scores` is not specified, an array of members

    • when ‘:with_scores` is specified, an array with `[member, score]` pairs



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# File 'lib/redis.rb', line 1773

def zrange(key, start, stop, withscores: false, with_scores: withscores)
  args = [:zrange, key, start, stop]

  if with_scores
    args << "WITHSCORES"
    block = FloatifyPairs
  end

  synchronize do |client|
    client.call(args, &block)
  end
end