Don’t do that #14: Use Add method when creating a hashtable with multiple elements

Don’t do that: An empty hashtable is created and then the elements are added.

$hashtable = @{}

$hashtable.Add('User1','Department1')
$hashtable.Add('User2','Department2')
$hashtable.Add('User3','Department3')
$hashtable.Add('User4','Department4')
$hashtable.Add('User5','Department5')

$hashtable = @{}

$hashtable.Add('User1','Department1')

$hashtable.Add('User2','Department2')

$hashtable.Add('User3','Department3')

$hashtable.Add('User4','Department4')

$hashtable.Add('User5','Department5')

Do that: In this scenario, I prefer to create the hashtable with the elements (key/value), not after the creation: it’s faster and more practical.

$hashtable = [ordered]@{
    User1 = 'Department1'
    User2 = 'Department2'
    User3 = 'Department3'
    User4 = 'Department4'
    User5 = 'Department5'
}

$hashtable = [ordered]@{

User1 = 'Department1'

User2 = 'Department2'

User3 = 'Department3'

User4 = 'Department4'

User5 = 'Department5'

}

Note: The attribute “ordered” is optional (it exists since Powershell v3 and creates an ordered dictionary).

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