Question

Viz.
ABC.ps1 has this

param(
[bool]$A= $False,
[bool]$B= $False,
[bool]$C= $False
)

$count=$Args.Count
Write-Host "$count"

If I call it as:
.\ABC.ps1 $True $True $True
It should display 3.

This is just a guess, but $Args.Count is always zero, possibly because it Args doesn’t hold/count named arguments.

Answer 1

The number of named parameters can be gotten from $psboundparameters

&{param(
[bool]$A= $False,
[bool]$B= $False,
[bool]$C= $False
)
$psboundparameters | ft auto
$psboundparameters.count
} $true $true $true

Key Value
--- -----
A    True
B    True
C    True


3

$arg will indeed contain only the unbound parameters.