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J (programming language)
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==Debugging== [[File:Dissect example Collatz.png|thumb|Dissecting the Collatz sequence starting from 6]] J has the usual facilities for stopping on error or at specified places within verbs. It also has a unique visual debugger, called [http://code.jsoftware.com/wiki/Vocabulary/Dissect ''Dissect''], that gives a 2-D interactive display of the execution of a single J sentence. Because a single sentence of J performs as much computation as an entire subroutine in lower-level languages, the visual display is quite helpful.
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