Dynamically create functions from hashtable with parameters in PowerShell

Question

Question

Hi, I'd like to dynamically create functions from a hashtable in Powershell. But the created functions are supposed to be able to receive parameters.

The Code I have so far:

$functions = @{
    "wu" = "winget upgrade --include-unknown";
    "wui" = "winget upgrade -i -e";
    "wi" = "winget install -i";
    "wii" = "winget install -i -e";
    "ws" = "winget search"
}

foreach($funcName in $functions.PSBase.Keys){
    New-Item function:\ -Name $funcName -Value $([scriptblock]::Create($functions[$funcName])) | Out-Null
}

The problem is, that whatever I type behind the function is not considered a parameter:

Can you help me out?

Answer

The finished result thanks to @zett42 & @mklement0

# Functions (separated for autocomplete)
$wg_functions = @{
    wu   = {winget upgrade @args}
    wui  = {winget upgrade -i -e @args}
    wuiu = {winget upgrade --include-unknown @args}
    wi   = {winget install -i @args}
    wii  = {winget install -i -e @args}
    ws   = {winget search @args}
}

$other_functions = @{
    dev = {Set-Location "W:/Projects/Development" @args}
    gtc = {git clone @args}
}

$functions = $wg_functions + $other_functions

foreach($funcKey in $functions.PSBase.Keys) {
    New-Item function:$funcKey -Value $functions.$funcKey | Out-Null
}

Answer 1

Here is a possible solution:

$functions = @{
    ws = { winget search $args }
    # ... and so on
}

foreach($funcName in $functions.PSBase.Keys){
    New-Item function:\ -Name $funcName -Value $functions.$funcName | Out-Null
}

• Define script blocks {…} directly in the hashtable, so you don't need to convert anything for the New-Item arguments.
• Use the automatic variable $args to forward arguments of the script block to the command. Note that for native commands, the $args array is unrolled automatically. For PowerShell commands you'd have to use splatting (@args).