Powershell check if object values contain a $null

Question

I want to check whether a powershell object contains any null values. If it does, then it should return a $true

For example

$tags=@{'Artist'='Madonna';`
        'Title'='Like a Prayer';`
        'Genre'=$null; }

How can I test that $tags contains a null value?

Well you will need to be more specific, checking if there is a null in a hashtable could be as simple as $tags.ContainsValue($null) but I'll assume you're also looking to check if it contains an empty string and I'll also assume, since you're talking about a powershell obejct, $tags is not actually a hashtable but a pscustomobject instead. — Santiago Squarzon
– Santiago Squarzon, Commented Dec 21, 2022 at 21:29
Great, that worked. .containsvalue($null) gave me the outcome i required. Thanks. — Chris Reeve
– Chris Reeve, Commented Dec 21, 2022 at 21:38

Santiago Squarzon · Accepted Answer · 2022-12-21 21:45:49Z

2

$tags.ContainsValue($null)

Using a containment operator would also work:

$tags.Values -contains $null
$null -in $tags.Values

answered Dec 21, 2022 at 21:45

Santiago Squarzon

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