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I have seen the following prefix :: what does it represent? A :abc is a keyword, but what is ::abc ?
Thanks, Murtaza
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Prefixes are letters which we add to the beginning of a word to make a new word with a different meaning. Prefixes can, for example, create a new word opposite in meaning to the word the prefix is attached to. They can also make a word negative or express relations of time, place or manner.
The four most common prefixes are dis-, in-, re-, and un-. (These account for over 95% of prefixed words.)
An- = prefix denoting without, lacking. Anaerobe = an organism that is able to live and grow in the absence of free oxygen. Anaesthesia = loss of feeling or sensation in a part or all of the body. (N.B. in some cases the same meaning of 'without' can be conveyed by the 'A'- alone as the prefix)
in- (1) word-forming element meaning "not, opposite of, without" (also im-, il-, ir- by assimilation of -n- with following consonant, a tendency which began in later Latin), from Latin in- "not," cognate with Greek an-, Old English un-, all from PIE root *ne- "not."
In other languages this is the default namespace. But not sure if this exists in Clojure too. Refering to this comment, it seems to be correct.
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Suppose that the current namespace is my.app. Then, ::x is a reader shorthand for :my.app/x, a keyword whose namespace part is my.app and name is x.
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