How do I dynamically add elements to arrays in PowerShell?

Question

I don\'t have much PowerShell experience yet and am trying to teach myself as I go along.

I\'m trying to make some proof of concept code for a bigger project. The main g

Answer 1

$testArray = [System.Collections.ArrayList]@()
$tempArray = "123", "321", "453"

foreach($item in $tempArray)
{
    $arrayID = $testArray.Add($item)
}