Do you have a benchmarked application where the benchmark is showing that foreach/grep,map is the specific bottleneck and causing tens of seconds of extra run time? Because if not, choose the best tool to make the code as easy as possible to understand.

You will usually save a lot more time writing maintainable code than seeking the fastest runtime you can manage.

If you do need to improve runtime you should try to be smart rather than clever. A smart solution is likely to approach the problem from an entirely different direction. A clever solution is likely to be a nasty mess arrived at by iterative tweaking the code to squeeze the last drop of performance out of a sub-optimum algorithm.

Optimising for fewest key strokes only makes sense transmitting to Pluto or beyond

In reply to Re: Speed comparison of foreach vs grep + map by GrandFather
in thread Speed comparison of foreach vs grep + map by mldvx4

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