In PowerShell and many languages, an array is a set of items all represented by a single variable. To explain arrays and how to manage them in PowerShell, let's start with the example of a set of ...

In the second part of this series, Brien shows how to import a .CSV file into a PowerShell array, including two methods for zooming in on just the specific data you need and filtering out the rest. In ...

I’m making a new Powershell inventory script. I already have one, but I’m fiddling with the arrays to see if I can make the code a little prettier. I can make variables that have custom members with ...

I'm making a script that will write a two-dimensional array to an Excel spreadsheet. The script is meant to be called from within other scripts. An outer loop runs ...

PowerShell hashtables are a type of collection that allow you to store data in a key-value format. They’re incredibly useful for storing and retrieving data, and they’re a common feature in PowerShell ...

I was looking into += as the canonical example of inefficient powershell code for my presentation at psconfeu, and noticed that doing += on 10k items allocates 1.5 GB of memory and forces many garbage ...