Another update from ingydotnet^djgoku

Task/Search-a-list/PowerShell/search-a-list.psh

@@ -0,0 +1,12 @@
+function index($haystack,$needle) {
+    $index = $haystack.IndexOf($needle)
+    if($index -eq -1) {
+        Write-Warning "$needle is absent"
+    } else {
+        $index
+    }
+
+}
+$haystack = @("word", "phrase", "preface", "title", "house", "line", "chapter", "page", "book", "house")
+index $haystack "house"
+index $haystack "paragraph"