A function has three general tasks it can perform; it optionally takes an input, does some processing and optionally sends something out. In this article, I'd like to go over a few different ways in ...

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.

Visualizing Functions as Graphs. In the applet below is intended to help you understand the connection between the graph of a function and the function itself. Recall that a function can be thought of ...

You can translate user input to lowercase using Python's built-in "lower" string function. Access your Python editor. Prompt the user to enter data using the "raw_input" function and the "lower ...

Posey's Tips & Tricks. 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.