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For loops violate the https://en.wikipedia.org/wiki/Rule_of_least_power https://en.wikipedia.org/wiki/Rule_of_least_power. Because they could do anything, you h

For loops violate the https://en.wikipedia.org/wiki/Rule_of_least_power https://en.wikipedia.org/wiki/Rule_of_least_power. Because they could do anything, you have to read each very carefully to find out what it's actually doing (which may not be what was intended). Flat-map and filter are more concise and clearer, and if my platform makes them slower that's an implementation bug I should fix.

cle 7y ago
In practice, reading a for-loop has been less problematic for me than reading the incantations of a functional programmer who’s been reading about category theory. I know all about the virtues of functional programming patterns, and use them in personal projects, but in my day job working with dozens of engineers in the same codebase, I appreciate not having to decode the idiosyncrasies of how each engineer decides when and how to use higher order constructs, and the subsequent performance, operational, and maintenance implications. It’s a lot easier for me to just read a for-loop and move on with my life.