Call function by reference in PowerShell [duplicate]

Question

Suppose I have a function like this. How can I get a reference to that function and then call it?

function Hello($name) { 
    Write-Output "Hello, $name" 
}

dan-gph · Accepted Answer · 2025-10-03 06:07:09Z

1

You can do it like this:

function Hello($name) { 
    Write-Output "Hello, $name" 
}

$myFunc = $function:Hello

& $myFunc "Fred"

(& is called the call operator.)

But I think a more idiomatic way in PowerShell is to use a script block:

$Hello = {
    param($name)
    Write-Output "Hello, $name"
}

& $Hello "Fred"

You can also call the script block like this:

Invoke-Command -ScriptBlock $Hello -ArgumentList "Fred"

edited Oct 3 at 6:07

answered Oct 3 at 5:56

dan-gph

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