How to Create [PsCustomObject] with Properties AND Methods
You probably want to use the Add-Member cmdlet:
$Obj = [pscustomobject]@{ A = @(5,6,7) B = 9}$Obj | Add-Member -MemberType ScriptMethod -Name "Len_A" -Force -Value { $this.A.count } Now you can call the method as expected using:
$Obj.Len_A()
You did not mention which version of powershell you are using. If you want object-orientation use class like this.
class CustomClass { $A = @(5,6,7) $B = 9 [int] Len_A(){return $this.A.Count} [int] Sum_A(){ $sum = 0 $this.A | ForEach-Object {$sum += $_} return $sum }}$c = New-Object CustomClass$s = $c.Sum_A()$l = $c.Len_A()