Mastering Windows PowerShell Scripting - Third Edition

Split

The Split method has a relative in PowerShell: the -split operator. The -split operator expects a regular expression, whereas the split method for a string expects an array of characters by default:

$myString = 'Surname,GivenName' 
$myString.Split(',') 

When splitting the following string based on a comma, the resulting array will have three elements. The first element is Surname, the last is GivenName. The second element in the array (index 1) is blank:

$string = 'Surname,,GivenName' 
$array = $string.Split(',') 
$array.Count    # This is 3 
$array[1]       # This is empty 

This blank value may be discarded by setting the StringSplitOptions argument of the Split method:

$string = 'Surname,,GivenName' $array = $string.Split(',', [StringSplitOptions]::RemoveEmptyEntries) ...