Method CFAddNX

probabilistic.go:572–577

CFAddNX adds an element to a Cuckoo filter only if it does not already exist in the filter. Returns true if the element was added to the filter or false if it already exists in the filter. For more information - https://redis.io/commands/cf.addnx/

(ctx context.Context, key string, element interface{})

// Returns true if the element was added to the filter or false if it already exists in the filter.
// For more information - https://redis.io/commands/cf.addnx/
func (c cmdable) CFAddNX(ctx context.Context, key string, element interface{}) *BoolCmd {
	args := []interface{}{"CF.ADDNX", key, element}
	cmd := NewBoolCmd(ctx, args...)
	_ = c(ctx, cmd)
	return cmd
}

// CFCount returns an estimate of the number of times an element may be in a Cuckoo Filter.
// For more information - https://redis.io/commands/cf.count/