Why does PowerShell flatten arrays automatically?

Question

I\'ve written some pwsh code

\"a:b;c:d;e:f\".Split(\";\") | ForEach-Object { $_.Split(\":\") }
# => @(a, b, c, d,          


        

Answer 1

With foreach-object, it's usually useful to unwrap the array:

ps | foreach modules | sort -u modulename