powercli - PowerShell Object Count -

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i'm using vmware powercli query datastores have amount of freespace. query come nothing, one, or more one. feel there's got easier way check if it's 1 or more one. 

$ds = get-datastore | {$_.freesapcegb -gt 50} | sort-object freespacegb -descending

i know check if results this

if ($ds)

i know check if there's more one

if ($ds.count)

if there more one, want use 1 freespace use first one

$ds[0]

but if there one, $ds[0] not work , have use $ds, makes duplicate coding.

i know can limit results 

| select -first 1

but without limiting results there easier way this?

this should it:

$ds = @(get-datastore | {$_.freesapcegb -gt 50} | sort-object freespacegb -descending)

then should able use $ds[0] long $ds.count greater 0.


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