How do I - Remove an item from a Powershell array.

Because Powershell is so close in syntax to C#, we often forget that it is in fact, NOT C#.  A good example of this is manipulating arrays.  While Powershell did implement the += method for adding items to an array, it does not support -= for removing them.  Fortunately, the -ne switch serves the same purpose.  See the following example for a quick demonstration of removing items from an array in Powershell.

	$list = @(); #Initialize the array.
	$list += "Apple"; #$list = "Apple"
	$list += "Orange"; #$list = "Apple", "Orange"
	$list += "Tomato"; #$list = "Apple", "Orange", "Tomato"
	$list += "Grape"; #$list = "Apple", "Orange", "Tomato", "Grape"
	$list -= "Tomato"; # ERROR!!! You can't do this!
	#but this works
	$list = $list -ne "Tomato"; #$list = "Apple", "Orange", "Grape"

view raw Powershell-Remove-item-from-array.ps1 hosted with ❤ by GitHub

Enjoy
C