How to exclude non-valued object properties when converting to JSON in Powershell

Question

I have a piece of code that works but I want to know if there is a better way to do it. I could not find anything related so far. Here are the facts:

• I have an

Answer 1

I have the following function in my profile for this purpose. Advantage: I can pipe a collection of objects to it and remove nulls from all the objects on the pipeline.

Function Remove-Null {
    [cmdletbinding()]
    param(
        # Object to remove null values from
        [parameter(ValueFromPipeline,Mandatory)]
        [object[]]$InputObject,
        #By default, remove empty strings (""), specify -LeaveEmptyStrings to leave them.
        [switch]$LeaveEmptyStrings
    )
    process {
        foreach ($obj in $InputObject) {
            $AllProperties = $obj.psobject.properties.Name
            $NonNulls = $AllProperties |
                where-object {$null -ne $obj.$PSItem} |
                where-object {$LeaveEmptyStrings.IsPresent -or -not [string]::IsNullOrEmpty($obj.$PSItem)}
            $obj | Select-Object -Property $NonNulls
        }
    }
}

Some examples of usage:

$AnObject = [pscustomobject]@{
    prop1="data"
    prop2="moredata"
    prop5=3
    propblnk=""
    propnll=$null
}
$AnObject | Remove-Null

prop1 prop2    prop5
----- -----    -----
data  moredata     3

$ObjList =@(
    [PSCustomObject]@{
        notnull = "data"
        more = "sure!"
        done = $null
        another = ""
    },
    [PSCustomObject]@{
        notnull = "data"
        more = $null
        done = $false
        another = $true
    }
)
$objList | Remove-Null | fl #format-list because the default table is misleading

notnull : data
more    : sure!

notnull : data
done    : False
another : True