PowerShell function for adding elements to an array

Question

I\'m still quite new to PowerShell and am trying to create a few functions that weaves together for creating and administrating an array. And I\'m having some problems with

Answer 1

Arrays don't have an .insert() method, but collections do. An easy way to produce a collection from an array is to use the .invoke() method of scriptblock:

$array = 5,5,4,5,5

$collection = {$array}.invoke()
$collection
$collection.GetType()

5
5
4
5
5

IsPublic IsSerial Name                                     BaseType                                  
-------- -------- ----                                     --------                                  
True     True     Collection`1                             System.Object                             

Now you can use the .insert() method to insert an element at an arbitrary index:

$collection.Insert(2,3)
$collection


5
5
3
4
5
5

If you need it to be an array again, an easy way to convert it back to an array is to use the pipeline:

$collection | set-variable array
$array
$array.GetType()

5
5
3
4
5
5

IsPublic IsSerial Name                                     BaseType                                  
-------- -------- ----                                     --------                                  
True     True     Object[]                                 System.Array