ForEach-Object -Parallet with a Synchronized HashTable and Injecting a Function

foreach-parallel-sync-hash.ps1

function doStuff {
    param(
        [string]
        $Item
    )

    $htDoStuff.($Item) = @{}
}
$stringFuncDoStuff = "${function:doStuff}"

$htDoStuff = [System.Collections.Hashtable]::Synchronized((New-Object System.Collections.Hashtable)) #@{}

$array = @('first', 'second')

# ForEach-Object -Parallel
$array | ForEach-Object -Parallel {
    $function:doStuff = $using:stringFuncDoStuff
    $htDoStuff = $using:htDoStuff
    
    doStuff -Item $PSItem
}

$htDoStuff