PowerShell MythBusters w/ Matthew Dowst

PowerShell is full of rules everyone seems to know: never use += with arrays, foreach is faster than the pipeline, Write-Host is evil, etc.

But how many of those rules are actually true?

In this session, we'll put common PowerShell wisdom to the test. We'll benchmark competing approaches, dig into some of PowerShell's stranger behaviors, and find out whether each claim is Confirmed, Busted, or "It Depends."

Along the way, we'll explore performance, the pipeline, parallel execution, output behavior, and best practices that may not be as absolute as they first appear. You'll get a chance to predict the results before we run each experiment, and some of the answers may surprise even experienced PowerShell users.