New-SPOList.ps1

<#
.SYNOPSIS
Script to create a new list or document library in SharePoint Online.

.DESCRIPTION
This script connects to SharePoint Online using the specified SiteURL and creates a new list or document library based on the provided parameters.

.PARAMETER SiteURL
The URL of the SharePoint site where the list or document library will be created.

.PARAMETER Name
The name of the list or document library to be created.

.PARAMETER Type
Specify 'List' to create a list or 'DocumentLibrary' to create a document library.

.EXAMPLE
Create a new list named "Projects":
.\New-SPOList.ps1 -SiteURL "https://yourtenant.sharepoint.com/sites/yoursite" -Name "Projects" -Type List

.EXAMPLE
Create a new document library named "Documents":
.\New-SPOList.ps1 -SiteURL "https://yourtenant.sharepoint.com/sites/yoursite" -Name "Documents" -Type DocumentLibrary
#>

param(
    [Parameter(Mandatory=$true)]
    [string]$SiteURL,
    
    [Parameter(Mandatory=$true)]
    [string]$Name,
    
    [Parameter(Mandatory=$true)]
    [ValidateSet("List", "DocumentLibrary")]
    [string]$Type  # Specify 'List' for a list or 'DocumentLibrary' for a document library
)

# Connect to SharePoint Online using the specified SiteURL
Connect-PnPOnline -Url $SiteURL -Interactive

# Create a new list or document library based on the specified type
if ($Type -eq "List") {
    # Create a new list in SharePoint Online
    New-PnPList -Title $Name -Url "Lists/$Name" -Template GenericList
    Write-Host "List '$Name' has been created successfully!" -ForegroundColor Green
}
elseif ($Type -eq "DocumentLibrary") {
    # Create a new document library in SharePoint Online
    New-PnPList -Title $Name -Url "Documents/$Name" -Template DocumentLibrary
    Write-Host "Document Library '$Name' has been created successfully!" -ForegroundColor Green
}
else {
    Write-Host "Invalid list type specified. Please provide 'List' or 'DocumentLibrary' as the type parameter." -ForegroundColor Red
}