Data update

Task/Stack/PowerShell/stack-1.ps1

@@ -0,0 +1,3 @@
+$stack = New-Object -TypeName System.Collections.Stack
+# or
+$stack = [System.Collections.Stack] @()

Task/Stack/PowerShell/stack-2.ps1

@@ -0,0 +1 @@
+1, 2, 3, 4 | ForEach-Object {$stack.Push($_)}

Task/Stack/PowerShell/stack-3.ps1

@@ -0,0 +1 @@
+$stack -join ", "

Task/Stack/PowerShell/stack-4.ps1

@@ -0,0 +1 @@
+$stack.Pop()

Task/Stack/PowerShell/stack-5.ps1

@@ -0,0 +1 @@
+$stack -join ", "

Task/Stack/PowerShell/stack-6.ps1

@@ -0,0 +1 @@
+$stack.Peek()

Task/Stack/PowerShell/stack-7.ps1

@@ -0,0 +1 @@
+$stack