How can you test if an object has a specific property?

Question

How can you test if an object has a specific property?

Appreciate I can do ...

$members = Get-Member -InputObject $myobject 

and th

Answer 1

Just check against null.

($myObject.MyProperty -ne $null)

If you have not set PowerShell to StrictMode, this works even if the property does not exist:

$obj = New-Object PSObject;                                                   
Add-Member -InputObject $obj -MemberType NoteProperty -Name Foo -Value "Bar";
$obj.Foo; # Bar                                                                  
($obj.MyProperty -ne $null);  # False, no exception