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clojure.org site
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namespaces-reference: ns vs in-ns #663

Open eval opened 11 months ago

eval commented 11 months ago

Reading https://clojure.org/reference/namespaces I was a bit surprised how it describes setting up a namespace when REPL-ing (first section, third paragraph):

The best way to set up a new namespace at the top of a Clojure source file is to use the ns macro. ... At the Repl it's best to use in-ns, in which case the new namespace will contain mappings only for the classnames in java.lang. In order to access the names from the clojure.core namespace you must execute (clojure.core/refer 'clojure.core).

What’s the rationale behind the it's best to use in-ns? However nice to read what ns does behind the scenes to turn a ‘bare’ namespace into something ‘useable’, it’s not something that seems to be better than ns ?