The most basic example of a GETPIVOTDATA formula in Microsoft Excel is when the function is used to retrieve a grand total of ...

How To Validate Input in PowerShell Functions, Part 2 As Brien demonstrates, string validation is not the only type of input validation that PowerShell can perform.

You can translate user input to lowercase using Python's built-in "lower" string function.

Posey's Tips & Tricks How To Validate Input in PowerShell Functions, Part 1 If your automated script takes action based on a value, it's critical to make sure the value is correct.