Comment by jiggawatts

PowerShell can process 0..n input objects from the pipeline using BEGIN {...} PROCESS {...} END {...} blocks.

I find this so incredibly useful, that I miss it from other languages.

Something related that I've noticed with OO languages such as Java is that it tends to result in "ceremony" getting repeated n-times for processing n objects. a well-designed begin-process-end syntax for function calls over iterables would be amazing. This could apply to DB connection creation, security access checks, logging, etc...