Method ZRANK

sorted_sets.go:377–379

(key string, member string)

}

func (c Client) ZRANK(key string, member string) (rank int64, found bool, err error) {
	return c.zRank(key, member, true)
}

func (c Client) zRank(key string, member string, forward bool) (rank int64, ok bool, err error) {
	score, ok, err := c.ZSCORE(key, member)