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arrayspowershellpowershell-2.0notation

PowerShell: Difference between array notation?

Is there a difference between these two array creation statements? So, is '@' sign optional when creating arrays?

$a = "This", "Is", "a", "cat"
$a.GetType()
$a | gm
$a = @("This", "Is", "a", "cat")
$a.GetType()
$a | gm
Solution 
  • $a = @() # declare an empty array.

$a = @(mysingleitem) # declare an array with a single element

    In other case is optional.