powershell - Compare the properties of two PsCustomObjects -


i know can compare values of 2 powershell objects:

ps> $a = [pscustomobject]@{"a"=1; "b"=$true; "c"=$false} ps> $b = [pscustomobject]@{"a"=1; "b"=$false; "c"=$false} ps> compare-object $a $b -property a, b, c   b     c sideindicator -  -     - ------------- 1  false false => 1  true  false <=

however, need compare existance properties of 2 powershell objects.

these objects considered same:

ps> $a = [pscustomobject]@{"a"=1; "b"=$true; "c"=$false} ps> $b = [pscustomobject]@{"a"=1; "b"=$false; "c"=$true} ps> compare-foo $a $b true

these objects considered not same:

ps> $a = [pscustomobject]@{"a"=1; "c"=$false} ps> $b = [pscustomobject]@{"a"=1; "b"=$false; "c"=$false} ps> compare-foo $a $b false

is there way this?

i can think of few ways this, straightforward not tested:

$a.keys | foreach-object { $c = $b["$_"]; if ($c -eq "") {return $false;} }

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