[racket] Index pairs question

From: Kevin Forchione (lysseus at gmail.com)
Date: Tue Nov 11 16:42:52 EST 2014

I’ve noticed that at least some of the functions in the racket library use “index pairs”: (start . end) rather than something start/length and was wondering if there’s an advantage to doing so? I like to keep my own projects consistent with the racket style and am wondering if this format of index pairs: (beginning . end) is the preferred form?


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