Method exists

structure/zset.go:549–561

exists checks if a given member with a specific score exists in a ZSet. It also verifies if the provided key is valid. The function returns a boolean value indicating whether the member with the specified score exists in the ZSet or not. Parameters: key (string): Specifies the key of the ZSet. s

(key string, score int, member string)

// exists in the ZSet or not. Returns false if the ZSet does not exist or if
// the key is invalid.
func (zs *ZSetStructure) exists(key string, score int, member string) bool {
	if err := checkKey(key); err != nil {
		return false
	}
	keyBytes := stringToBytesWithKey(key)

	zSet, err := zs.getZSetFromDB(keyBytes)

	if err != nil {
		return false
	}
	return zSet.exists(score, member)
}

/*
ZRem is a method belonging to ZSetStructure that removes a member from a ZSet.