Powershell - combine switch statement and loop - powershell

Question

I have a piece of code presented below, it takes values from a json file. This is a array of string --> $Json.Names. I would like to avoid duplicate lines like --> $Json.Names[0].Name {$Json.Names[0].Name; break}. Second case is that Array $Json.Names could have different length, array can have 6 and more or less elements. I want to make this switch statement more elastic. I tried to use for loop and while loop, but in this case these loops doesn't help me. Is there any clever method to make this code more sophisticated/elastic and avoid duplicate mentioned code lines$Json.Names[0].Name {$Json.Names[0].Name; break}
$Json = Get-Content "$path" | out-string | ConvertFrom-Json
$Name = switch ($Member) {
$Json.Names[0].Name {$Json.Names[0].Name; break}
$Json.Names[1].Name {$Json.Names[1].Name; break}
$Json.Names[2].Name {$Json.Names[2].Name; break}
$Json.Names[3].Name {$Json.Names[3].Name; break}
$Json.Names[4].Name {$Json.Names[4].Name; break}
$Json.Names[5].Name {$Json.Names[5].Name; break}
$Json.Names[6].Name {$Json.Names[6].Name; break}
default {"Unknown Name"}
}

Answer 1

Assuming this structure:
$json = [pscustomobject]#{names = [pscustomobject]#{name ='joe'},
[pscustomobject]#{name ='john'},
[pscustomobject]#{name ='james'}}
Assuming $member is a single name, you can say
$name = $json.names.name -eq $member # an array of one
$name would be a null array if there's no match.
if (! $name) { $name = 'Unknown Name' }
Or, in the language of Powershell 7 preview 5:
$name ??= 'Unknown Name'
You also may want to make a hashtable of the names.

Answer 2

You can take advantage of property enumeration and simplify your code pretty significantly:
# define our default
$Name = "Unknown Name"
# define the list of names
$Json = Get-Content "$path" | ConvertFrom-Json
$Names = $Json.Names.Name
# update $Name if applicable
if($Names -contains $member){
$Name = $member
}