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"Smith, John" -replace "(\w+),\s*(\w+)", '$2 $1'
## John Smith

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function Write-CustomLog {
    param([string]$Message)
    
    $callerInfo = (Get-PSCallStack)[1]
    $scriptName = Split-Path -Leaf $callerInfo.ScriptName
    $lineNumber = $callerInfo.ScriptLineNumber
    $functionName = $callerInfo.FunctionName
    
    $logEntry = "{0:yyyy-MM-dd HH:mm:ss} - {1}:{2} - {3} - {4}" -f `
        (Get-Date), $scriptName, $lineNumber, $functionName, $Message

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$logEntries = @(
    "2024-06-09",
    "Error: Disk full",
    404,
    "2024-06-08",
    "Error: Network unreachable",
    500
)

foreach ($entry in $logEntries) {

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function Remove-ItemSafely {
    [CmdletBinding(SupportsShouldProcess, ConfirmImpact = 'High')]
    param([string]$path)

    if ($PSCmdlet.ShouldProcess($path, "Remove")) {
        Remove-Item -Path $path
    }
}

PS> Remove-ItemSafely -Path '\oh\god\wrong\file.txt' -WhatIf

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function Get-ListOfFiles {
    [OutputType('System.IO.FileInfo')]
    [CmdletBinding()]
    param(
        [string]$Path
    )
    Get-ChildItem -File -Path $Path
}

Get-ListOfFiles -Path "C:\Temp" | ForEach-Object {

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function Get-DatabaseData {
    [CmdletBinding()]
    param (
        [Parameter(Mandatory)]
        [string]$DatabaseType
    )

    dynamicparam {
        $paramDictionary = New-Object System.Management.Automation.RuntimeDefinedParameterDictionary
        $attributes = New-Object System.Collections.ObjectModel.Collection[System.Attribute]

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function Set-LogLevel {
    param (
        [ValidateSet("Debug", "Info", "Warning", "Error")]
        [string]$Level
    )

    Write-Output "Log level set to $Level"
}

# Example usage:

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## Instead of this
$group = 'some group name'

## Do this
$groupName = 'some group name'

## Because a group could be an object with properties like id, name, displayname, etc

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# Define a custom object for a server or whatever object you want
$server = [pscustomobject]@{
	Name = "Server1"
	IPAddress = "192.168.0.1"
}

# Add a ScriptMethod to check if the server is online
## This can run any code you may like to associated with an object
$server | Add-Member -MemberType ScriptMethod -Name "IsOnline" -Value {
	param ($Timeout = 1000)

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## e.g. Ensure Get-Content always returns verbose information
$PSDefaultParameterValues['Get-Content:Verbose'] = $true