PowerShell Hash Table Example with CLI Parameters and Try Catch Error Handling

hash_table_example.ps1

# Input CLI params with default values
param (
    $number=1,
    $shape="Square",
    $color="Blue"
)
try { 
    # Ordered hash table
    [hashtable]$hash = [ordered]@{Number = $number; Shape = $shape; Color = $color}

    # print out hash table using Out-String
    $hash | Out-String | Write-Host

    # print out hash table using for loop
    foreach ($h in $hash.GetEnumerator() ) {
        Write-Host "$($h.Name) : $($h.Value)"
    }
} catch {
    Write-Host "An error occured"
    Exit 1

} finally {
    Write-Host "This script executed successfully"
    Exit 0
}