In a Clojure REPL, it is possible to declare the same namespace again, without existing namespaces aliases being altered or removed:
`
user=> (ns my-test-ns.core (:require [clojure.string :as string]))
nil
my-test-ns.core=> (def a string/blank?)
'my-test-ns.core/a
my-test-ns.core=> (ns my-test-ns.core)
nil
my-test-ns.core=> (def a string/blank?)
'my-test-ns.core/a
my-test-ns.core=>
`
ClojureScript REPLs do not behave in the same way:
`
ClojureScript:cljs.user> (ns my-test-ns.core (:require [clojure.string :as string]))
true
ClojureScript:my-test-ns.core> (def a string/blank?)
<function clojure$string$blankQMARK(s){
return goog.string.isEmptySafe(s);
}>
ClojureScript:my-test-ns.core> (ns my-test-ns.core)
nil
ClojureScript:my-test-ns.core> (def a string/blank?)
WARNING: No such namespace: string, could not locate string.cljs at line 1
WARNING: Use of undeclared Var string/blank? at line 1
repl:13
throw e3919auto__;
^
ReferenceError: string is not defined
at repl:1:109
at repl:9:3
at repl:14:4
at Object.exports.runInThisContext (vm.js:74:17)
at Domain.<anonymous> ([stdin]:41:34)
at Domain.run (domain.js:197:16)
at Socket.<anonymous> ([stdin]:40:25)
at Socket.emit (events.js:107:17)
at readableAddChunk (_stream_readable.js:163:16)
at Socket.Readable.push (_stream_readable.js:126:10)
ClojureScript:my-test-ns.core>
`