in reply to
Re^5: better array to hash conversion
in thread better array to hash conversion
In the unlikely event of having hundreds of thousands of entries, the run-time will be a fraction of a second faster (and nobody will notice or care). In the very unlikely event of this particular operation being even as much as 10% of the total run-time, the difference between the worst and the best shown so far will result in a 5% reduction in total run-time (which nobody will notice or care about).