Jan 23, 2025 · Learn how to create reusable PowerShell functions, implement best practices, and avoid common pitfalls in function design, error handling, and parameter validation.

Jan 18, 2026 · These statement blocks are named using the keywords begin, process, end, and clean. If you don't use these keywords, PowerShell puts the statements in the appropriate code block. …

Sep 29, 2025 · Advanced functions allow you create cmdlets that are written as a PowerShell function. Advanced functions make it easier to create cmdlets without having to write and compile a binary …

May 21, 2025 · The Parameter keywords can appear in any order in the comment block, but the function or script syntax determines the order in which the parameters (and their descriptions) appear in help …

Jan 18, 2026 · Beginning in PowerShell 5.0, PowerShell added language for defining classes, by using formal syntax. In the context of a PowerShell class, nothing is output from a method except what you …

Parameters are variables declared in the param() statement of a function or scriptblock. You can use the optional [Parameter()] attribute alone or in combination with the [Alias()] attribute or any of the …

Sep 29, 2025 · Placing a #Requires statement inside a function doesn't limit its scope. All #Requires statements are always applied globally, and must be met, before the script can execute.

Jan 18, 2026 · Like many other languages, PowerShell has statements for conditionally executing code in your scripts. One of those statements is the If statement. Today we will take a deep dive into one …

Mar 24, 2025 · The following example shows the format of a function that specifies all the optional arguments of the CmdletBinding attribute. A brief description of each argument follows this example.

Jan 13, 2026 · A try statement can include multiple catch blocks for different kinds of errors. A finally block can be used to free any resources that are no longer needed by your script.