I just discovered something cool that might seem obvious to some
people but is, as as I can tell, undocumented and caught me totally by
surprise. It's well known that the reader resolves ::something
into :the-current-namespace/something. But what I found out is that if
you use require to alias a namespace, you can use that abbreviation
with the double colon and a slash:

Clojure 1.0.0-
user=> (require '[clojure.contrib.test-is :as t])
nil
user=> :t/a
:t/a
user=> ::a
:user/a
user=> ::t/a
:clojure.contrib.test-is/a

I had no idea, and I think it's an awesome feature.

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