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

For me MyProperty" -in $MyObject.PSobject.Properties.Name didn't work, however

$MyObject.PSobject.Properties.Name.Contains("MyProperty")

works