How do I identify hashtable keys with multiple values in powershell-CodePudding

I have a hashtable created from an array like this:

$employeesHashtable = $employees | Group-Object -Property Initials -AsHashTable

How do I find keys having multiple values?

CodePudding user response：

The alternative to using .GetEnumerator() can be using the hash table Keys, the key collection implements ICollection and can be enumerated without issues:

$keysWithMultipleValues = $employeesHashtable.Keys.where{ $employeesHashtable[$_].Count -gt 1 }

CodePudding user response：

I ended up with this:

$keysWithMultipleValues = $employeesHashtable.GetEnumerator() | `
  ForEach-Object { [PSCustomObject]@{ Key = $_.Key; Count = $_.Value.Count } } | `
  Where-Object { $_.Count -gt 1 }