underive
- (underive tag parent)
- (underive h tag parent)
Removes a parent/child relationship between parent and tag. h must be a hierarchy obtained from make-hierarchy, if not supplied defaults to, and modifies, the global hierarchy.
© Rich Hickey. All rights reserved. Eclipse Public License 1.0
1 Example
;; create a simple hierarchy using the global hierarchy ;; and demonstrate how underive is used user=> (derive ::dog ::animal) nil user=> (derive ::spaniel ::dog) nil user=> (derive ::tabby ::dog) nil user=> (ancestors ::tabby) #{:user/dog :user/animal} user=> (underive ::tabby ::dog) nil user=> (ancestors ::tabby) nil