[powershell] Looping through a hash, or using an array in PowerShell

About looping through a hash:

$Q = @{"ONE"="1";"TWO"="2";"THREE"="3"}
$Q.GETENUMERATOR() | % { $_.VALUE }
1
3
2

$Q.GETENUMERATOR() | % { $_.key }
ONE
THREE
TWO

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