Prop lists vs. dictionaries

Richard Carlsson <>
Mon Apr 18 12:15:56 CEST 2005


joel reymont wrote:
> Is there any particular reason to use prop lists over dictionaries?

Certainly not for efficiency. Proplists are handy for passing
options to a function, using defaults, overriding, combining, etc.

If you pass a proplist to control the behaviour of some heavy
computation, I recommend that you internally pick out the values
from the proplist and put them in a record or dictionary for
quick access before you enter the main loop.

	/Richard



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