clojure.core/remove-ns

View this page on ClojureDocs

Type: function Added: Clojure 1.0 Examples: 2 Runnable: 0

([sym])

Removes the namespace named by the symbol. Use with caution. Cannot be used to remove the clojure namespace.

Examples

by belun on 2010-09-20 . May have evaluation errors. ▶

;; Let's create a namespace and then remove it (create-ns 'my-new-namespace) #<Namespace my-new-namespace> ;; removing a namespace will give you the namespace you just deleted, if one existed (remove-ns 'my-new-namespace) #<Namespace my-new-namespace> ;; removing a namespace that does not exist, will tell you that nothing was removed, ;; by returning nil, and won't give any errors (remove-ns 'my-new-namespace) nil

by reborg on 2018-12-29 . May have evaluation errors. ▶

;; Unlikely you'll ever want to use "remove-ns" unless you know what you're ;; doing. Prefer libs like tools.namespace whenever possible. For example, ;; here we are preventing garbage collecting the namespace and getting a ;; stale read. (create-ns 'go-away) (intern 'go-away 'my-var 0) (refer 'go-away :only ['my-var]) (remove-ns 'go-away) ;; nope, still here: (.ns #'my-var) ;; #object[clojure.lang.Namespace 0x1f658731 "go-away"] ;; replace (create-ns 'go-away) (intern 'go-away 'my-var 1) ;; stale my-var ;; 0 ;; correct @#'go-away/my-var ;; 1

See also

• clojure.core/create-ns (0)
• clojure.core/find-ns

---

Content from the matching ClojureDocs page, with authors credited on each contribution.