PowerShell - How to tell if two objects are identical

Question

Let\'s say you have two objects that are identical (meaning they have the same properties and the same values respectively).

How do you test for equality?

Answer 1

You can compare two PSObject objects for equality of properties and values by using Compare-Object to compare the Properties properties of both PSObjectobjects. Example:

if ( -not (Compare-Object $obj1.PSObject.Properties $obj2.PSObject.Properties) ) {
  "object properties and values match"
}
else {
  "object properties and values do not match"
}

If you want it in a function:

function Test-PSCustomObjectEquality {
  param(
    [Parameter(Mandatory = $true)]
    [PSCustomObject] $firstObject,

    [Parameter(Mandatory = $true)]
    [PSCustomObject] $secondObject
  )
  -not (Compare-Object $firstObject.PSObject.Properties $secondObject.PSObject.Properties)
}