The links to Python and Node versions were also helpful. The comments in the Python version [1] were especially helpful at explaining what was going on. 1: htt

The links to Python and Node versions were also helpful. The comments in the Python version [1] were especially helpful at explaining what was going on. 1: http://code.activestate.com/recipes/576564-walkers-alias-method-for-random-objects-with-diffe/ http://code.activestate.com/recipes/576564-walkers-alias-met...