diff --git a/lib/WebGUI/Account/Inbox.pm b/lib/WebGUI/Account/Inbox.pm
index 952613c31..d61f57b80 100644
--- a/lib/WebGUI/Account/Inbox.pm
+++ b/lib/WebGUI/Account/Inbox.pm
@@ -1177,7 +1177,7 @@ sub www_sendMessage {
                 $activeFriendCount++;
             }
 
-            my $isChecked  = WebGUI::Utility::isIn($friendId,@friendsChecked);            
+            my $isChecked  = $friendId ~~ @friendsChecked;
             my $friendHash = {
                 'friend_id'        => $friendId,
                 'friend_name'      => $friends->{$friendId},
diff --git a/lib/WebGUI/Account/Profile.pm b/lib/WebGUI/Account/Profile.pm
index e5ff26d19..685777f99 100644
--- a/lib/WebGUI/Account/Profile.pm
+++ b/lib/WebGUI/Account/Profile.pm
@@ -242,7 +242,7 @@ sub getExtrasStyle {
     my $requiredStyle    = q{class="profilefield_required"};
     my $errorStyle       = q{class="profilefield_error"};     #Required Field Not Filled In and Error Returend
 
-    return $errorStyle if(WebGUI::Utility::isIn($field->getId,@{$fieldErrors}));
+    return $errorStyle if $field->getId ~~ $fieldErrors;
     return "" unless ($field->isRequired);
     return $requiredStyle unless($self->session->user->profileField($field->getId) || $fieldValue);
     return $requiredStyleOff;
diff --git a/lib/WebGUI/Account/Shop.pm b/lib/WebGUI/Account/Shop.pm
index 6e8f37a51..72b34fc58 100644
--- a/lib/WebGUI/Account/Shop.pm
+++ b/lib/WebGUI/Account/Shop.pm
@@ -52,7 +52,7 @@ sub appendCommonVars {
     my $method  = $session->form->get("do");
     
     $var->{ 'manage_purchases_url'      } = $self->getUrl("module=shop;do=managePurchases");
-    $var->{ 'managesPurchasesIsActive'  } = WebGUI::Utility::isIn($method,("","managePurchases","view","viewTransaction"));
+    $var->{ 'managesPurchasesIsActive'  } = $method ~~ ["","managePurchases","view","viewTransaction"];
 
     $var->{ 'view_sales_url'            } = $self->getUrl( 'module=shop;do=viewSales' );
     $var->{ 'viewSalesIsActive'         } = $method eq 'viewSales';
diff --git a/lib/WebGUI/Asset.pm b/lib/WebGUI/Asset.pm
index 66fac0278..9227435f0 100644
--- a/lib/WebGUI/Asset.pm
+++ b/lib/WebGUI/Asset.pm
@@ -1046,7 +1046,7 @@ sub getEditForm {
                             };
 
         # Kludge...
-        if ( isIn( $fieldHash->{fieldType}, 'selectBox', 'workflow' ) and ref $fieldHash->{value} ne 'ARRAY' ) {
+        if ( $fieldHash->{fieldType} ~~ ['selectBox', 'workflow'] ) and ref $fieldHash->{value} ne 'ARRAY' ) {
             $fieldHash->{value} = [ $fieldHash->{value} ];
         }
 
@@ -2589,7 +2589,7 @@ sub www_add {
 		my $prototype = WebGUI::Asset->newById($self->session, $self->session->form->process("prototype"));
 		foreach my $property ($prototype->getProperties) { # cycle through rather than copying properties to avoid grabbing stuff we shouldn't grab
             my $definition = $prototype->getProperty($property);
-			next if (isIn($property,qw(title menuTitle url isPrototype isPackage)));
+			next if ( $property ~~ [qw(title menuTitle url isPrototype isPackage)]);
 			next if ($definition->{noFormPost});
 			$prototypeProperties{$property} = $prototype->get($property);
 		}
diff --git a/lib/WebGUI/Asset/File/ZipArchive.pm b/lib/WebGUI/Asset/File/ZipArchive.pm
index b8fe15722..151378716 100644
--- a/lib/WebGUI/Asset/File/ZipArchive.pm
+++ b/lib/WebGUI/Asset/File/ZipArchive.pm
@@ -46,7 +46,6 @@ use Archive::Tar;
 use Archive::Zip;
 use Cwd ();
 use Scope::Guard ();
-use WebGUI::Utility qw/isIn/;
 
 
 =head1 NAME
@@ -133,7 +132,7 @@ sub fixFilenames {
     my $files   = $storage->getFiles('all');
     FILE: foreach my $file (@{ $files }) {
         my $extension = $storage->getFileExtension($file);
-        next FILE unless isIn($extension, qw/pl perl pm cgi php asp sh/);
+        next FILE unless $extension ~~ [qw/pl perl pm cgi php asp sh/];
         my $newFile = $file;
         #$newFile =~ s/\.$extension$/_$extension.txt/;
         $newFile =~ s/\.$extension$/_$extension.txt/;
diff --git a/lib/WebGUI/Asset/RichEdit.pm b/lib/WebGUI/Asset/RichEdit.pm
index 65dccc501..28e4e1121 100644
--- a/lib/WebGUI/Asset/RichEdit.pm
+++ b/lib/WebGUI/Asset/RichEdit.pm
@@ -288,9 +288,9 @@ override getEditForm => sub {
     my $evenOddToggle = 0;
     foreach my $key (keys %buttons) {
             $evenOddToggle = $evenOddToggle ? 0 : 1;
-            my $checked1 = isIn($key,@toolbarRow1);
-            my $checked2 = isIn($key,@toolbarRow2);
-            my $checked3 = isIn($key,@toolbarRow3);
+            my $checked1 = $key ~~ @toolbarRow1;
+            my $checked2 = $key ~~ @toolbarRow2;
+            my $checked3 = $key ~~ @toolbarRow3;
             $buttonGrid .= '
     <tr'.($evenOddToggle ? ' style="background-color: #eeeeee;"' : undef).'>
             <td>'.$buttons{$key}.'</td>
diff --git a/lib/WebGUI/Asset/Sku/EMSBadge.pm b/lib/WebGUI/Asset/Sku/EMSBadge.pm
index 379838dfa..086afd93e 100644
--- a/lib/WebGUI/Asset/Sku/EMSBadge.pm
+++ b/lib/WebGUI/Asset/Sku/EMSBadge.pm
@@ -284,7 +284,11 @@ sub onRefund {
 	# get rid of any items in the cart related to this badge
 	foreach my $cartitem (@{$self->getCart->getItems()}) {
 		my $sku = $cartitem->getSku;
-		if (isIn((ref $sku), qw(WebGUI::Asset::Sku::EMSTicket WebGUI::Asset::Sku::EMSRibbon WebGUI::Asset::Sku::EMSToken))) {
+        if ((ref $sku) ~~ [qw(
+            WebGUI::Asset::Sku::EMSTicket
+            WebGUI::Asset::Sku::EMSRibbon
+            WebGUI::Asset::Sku::EMSToken
+        )]) {
 			if ($sku->getOptions->{badgeId} eq $badgeId) {
 				$cartitem->remove;
 			}
@@ -309,7 +313,11 @@ sub onRemoveFromCart {
 	my $badgeId = $self->getOptions->{badgeId};
 	foreach my $cartitem (@{$item->cart->getItems()}) {
 		my $sku = $cartitem->getSku;
-		if (isIn((ref $sku), qw(WebGUI::Asset::Sku::EMSTicket WebGUI::Asset::Sku::EMSRibbon WebGUI::Asset::Sku::EMSToken))) {
+        if ((ref $sku) ~~ [qw(
+            WebGUI::Asset::Sku::EMSTicket
+            WebGUI::Asset::Sku::EMSRibbon
+            WebGUI::Asset::Sku::EMSToken
+        )]) {
 			if ($sku->getOptions->{badgeId} eq $badgeId) {
 				$cartitem->remove;
 			}
diff --git a/lib/WebGUI/Asset/Sku/EMSRibbon.pm b/lib/WebGUI/Asset/Sku/EMSRibbon.pm
index d8d047d34..b8abdc9f3 100644
--- a/lib/WebGUI/Asset/Sku/EMSRibbon.pm
+++ b/lib/WebGUI/Asset/Sku/EMSRibbon.pm
@@ -232,8 +232,9 @@ sub www_delete {
 	my ($self) = @_;
 	return $self->session->privilege->insufficient() unless ($self->canEdit && $self->canEditIfLocked);
     return $self->session->privilege->vitalComponent() if $self->isSystem;
-    return $self->session->privilege->vitalComponent() if (isIn($self->getId,
-$self->session->setting->get("defaultPage"), $self->session->setting->get("notFoundPage")));
+    return $self->session->privilege->vitalComponent() if $self->getId ~~ [
+        $self->session->setting->get("defaultPage"), $self->session->setting->get("notFoundPage")
+    ];
     $self->trash;
     return $self->getParent->www_buildBadge(undef,'ribbons');
 }
diff --git a/lib/WebGUI/Asset/Sku/EMSTicket.pm b/lib/WebGUI/Asset/Sku/EMSTicket.pm
index 0bfd61bc8..defd0787b 100644
--- a/lib/WebGUI/Asset/Sku/EMSTicket.pm
+++ b/lib/WebGUI/Asset/Sku/EMSTicket.pm
@@ -328,7 +328,7 @@ sub getPrice {
 	my $discount = 0;
 	my $badgeId = $self->getOptions->{badgeId};
 	my $ribbonId = $self->session->db->quickScalar("select ribbonAssetId from EMSRegistrantRibbon where badgeId=? limit 1",[$badgeId]);
-	if (defined $ribbonId && isIn($ribbonId, @ribbonIds)) {
+	if (defined $ribbonId && $ribbonId ~~ @ribbonIds) {
 		my $ribbon = WebGUI::Asset->newById($self->session, $ribbonId);
 		$discount = $ribbon->percentageDiscount;
 	}
@@ -536,7 +536,10 @@ sub www_delete {
 	my ($self) = @_;
 	return $self->session->privilege->insufficient() unless ($self->canEdit && $self->canEditIfLocked);
     return $self->session->privilege->vitalComponent() if $self->isSystem;
-    return $self->session->privilege->vitalComponent() if (isIn($self->getId, $self->session->setting->get("defaultPage"), $self->session->setting->get("notFoundPage")));
+    return $self->session->privilege->vitalComponent() if $self->getId ~~ [
+        $self->session->setting->get("defaultPage"),
+        $self->session->setting->get("notFoundPage"),
+    ];
     $self->trash;
 	return $self->getParent->www_buildBadge(undef,'tickets');
 }
diff --git a/lib/WebGUI/Asset/Sku/EMSToken.pm b/lib/WebGUI/Asset/Sku/EMSToken.pm
index 2546f266e..5e65c382c 100644
--- a/lib/WebGUI/Asset/Sku/EMSToken.pm
+++ b/lib/WebGUI/Asset/Sku/EMSToken.pm
@@ -226,8 +226,10 @@ sub www_delete {
 	my ($self) = @_;
 	return $self->session->privilege->insufficient() unless ($self->canEdit && $self->canEditIfLocked);
     return $self->session->privilege->vitalComponent() if $self->isSystem;
-    return $self->session->privilege->vitalComponent() if (isIn($self->getId,
-$self->session->setting->get("defaultPage"), $self->session->setting->get("notFoundPage")));
+    return $self->session->privilege->vitalComponent() if $self->getId ~~ [
+        $self->session->setting->get("defaultPage"),
+        $self->session->setting->get("notFoundPage"),
+    ];
     $self->trash;
     return $self->getParent->www_buildBadge(undef,'tokens');
 }
diff --git a/lib/WebGUI/Asset/Sku/Product.pm b/lib/WebGUI/Asset/Sku/Product.pm
index 3db3055d5..6b3140349 100644
--- a/lib/WebGUI/Asset/Sku/Product.pm
+++ b/lib/WebGUI/Asset/Sku/Product.pm
@@ -1107,7 +1107,7 @@ sub www_deleteFileConfirm {
     my $self = shift;
     return $self->session->privilege->insufficient() unless ($self->canEdit);
     my $column = $self->session->form->process("file");
-    return $self->www_edit  unless (isIn($column, qw(image1 image2 image3 manual warranty brochure)));
+    return $self->www_edit  unless $column ~~ [qw(image1 image2 image3 manual warranty brochure)];
     my $store = $self->get($column);
     my $file = WebGUI::Storage->get($self->session,$store);
     $file->delete if defined $file;
diff --git a/lib/WebGUI/Asset/Template.pm b/lib/WebGUI/Asset/Template.pm
index cab520050..6e35a95b1 100644
--- a/lib/WebGUI/Asset/Template.pm
+++ b/lib/WebGUI/Asset/Template.pm
@@ -486,7 +486,7 @@ sub prepare {
 
 	my $id   = $self->getId;
 	# don't send head block if we've already sent it for this template
-	return if isIn($id, @$sent);
+	return if $id ~~ $sent;
 
 	my $session      = $self->session;
 	my ($db, $style) = $session->quick(qw(db style));
@@ -587,7 +587,7 @@ override processEditForm => sub {
     my $needsUpdate = 0;
 	if ($self->parser ne $self->session->form->process("parser","className") && ($self->session->form->process("parser","className") ne "")) {
         $needsUpdate = 1;
-		if (isIn($self->session->form->process("parser","className"),@{$self->session->config->get("templateParsers")})) {
+		if ($self->session->form->process("parser","className") ~~ $self->session->config->get("templateParsers") ) {
 			%data = ( parser => $self->session->form->process("parser","className") );
 		} else {
 			%data = ( parser => $self->session->config->get("defaultTemplateParser") );
diff --git a/lib/WebGUI/Asset/Wobject/Collaboration.pm b/lib/WebGUI/Asset/Wobject/Collaboration.pm
index 01200f29d..7b76ceeb6 100644
--- a/lib/WebGUI/Asset/Wobject/Collaboration.pm
+++ b/lib/WebGUI/Asset/Wobject/Collaboration.pm
@@ -1162,7 +1162,7 @@ sub getThreadsPaginator {
     $sortBy =~ s/^\w+\.//;
     # Sort by the thread rating instead of the post rating.  other places don't care about threads.
     $sortBy = $sortBy eq 'rating' ? 'threadRating' : $sortBy;
-    if (! WebGUI::Utility::isIn($sortBy, qw/userDefined1 userDefined2 userDefined3 userDefined4 userDefined5 title lineage revisionDate creationDate karmaRank threadRating views replies lastPostDate/)) {
+    if (! $sortBy ~~ [qw/userDefined1 userDefined2 userDefined3 userDefined4 userDefined5 title lineage revisionDate creationDate karmaRank threadRating views replies lastPostDate/]) {
         $sortBy = 'revisionDate';
     }
     if ($sortBy eq 'assetId' || $sortBy eq 'revisionDate') {
diff --git a/lib/WebGUI/Asset/Wobject/Collaboration/Newsletter.pm b/lib/WebGUI/Asset/Wobject/Collaboration/Newsletter.pm
index 7f503925a..5b799dd33 100644
--- a/lib/WebGUI/Asset/Wobject/Collaboration/Newsletter.pm
+++ b/lib/WebGUI/Asset/Wobject/Collaboration/Newsletter.pm
@@ -192,7 +192,7 @@ sub www_mySubscriptions {
     my @userPrefs = $self->getUserSubscriptions;
     foreach my $id (keys %{$meta}) {
         my @options = ();
-        if (isIn($id, split("\n", $self->newsletterCategories))) {
+        if ($id ~~ [split("\n", $self->newsletterCategories))]) {
             foreach my $option (split("\n", $meta->{$id}{possibleValues})) {
                 $option =~ s/\s+$//;    # remove trailing spaces
                 next if $option eq "";  # skip blank values
@@ -202,7 +202,7 @@ sub www_mySubscriptions {
                     optionForm  => WebGUI::Form::checkbox($self->session, {
                             name    => "subscriptions",
                             value   => $preferenceName,
-                            checked => isIn($preferenceName, @userPrefs),
+                            checked => $preferenceName ~~ @userPrefs,
                             })
                     });
             }
diff --git a/lib/WebGUI/Asset/Wobject/Dashboard.pm b/lib/WebGUI/Asset/Wobject/Dashboard.pm
index 18ef8e79c..1b21d4254 100644
--- a/lib/WebGUI/Asset/Wobject/Dashboard.pm
+++ b/lib/WebGUI/Asset/Wobject/Dashboard.pm
@@ -270,7 +270,7 @@ override prepareView => sub {
                 next;
             }
             last unless $child;
-		unless (isIn($child->getId, @hidden) || !($child->canView)) {
+        unless ( $child->getId ~~ @hidden || !$child->canView) {
 			$self->session->style->setRawHeadTags($child->getExtraHeadTags);
 			$child->prepareView;
 		}
@@ -341,7 +341,7 @@ sub view {
 		push(@hidden,$child->shortcutToAssetId) if ref $child eq 'WebGUI::Asset::Shortcut';
 		#the following loop will initially place just-dashletted assets.
 		for (my $i = 0; $i < scalar(@positions); $i++) {
-			next unless isIn($child->shortcutToAssetId,@hidden);
+			next unless $child->shortcutToAssetId ~~ @hidden;
 			my $newChildId = $child->getId;
 			my $oldChildId = $child->shortcutToAssetId;
 			$positions[$i] =~ s/${oldChildId}/${newChildId}/g;
@@ -362,7 +362,7 @@ sub view {
 		foreach my $asset (@assets) {
 			foreach my $child (@{$children}) {
 				if ($asset eq $child->getId) {
-					unless (isIn($asset,@hidden) || !($child->canView)) {
+					unless ($asset ~~ @hidden || !$child->canView) {
 						$self->session->style->setRawHeadTags($child->getExtraHeadTags);
 						$child->{_properties}{title} = $child->getTitle;
 						$child->{_properties}{title} = $child->getShortcut->getTitle if (ref $child eq 'WebGUI::Asset::Shortcut');
@@ -400,7 +400,7 @@ sub view {
 	}
 	# deal with unplaced children
 	foreach my $child (@{$children}) {
-		unless (isIn($child->getId, @found)||isIn($child->getId,@hidden)) {
+		unless ($child->getId ~~ @found || $child->getId ~~ @hidden) {
 			if ($child->canView) {
 				$child->{_properties}{title} = $child->getShortcut->title if (ref $child eq 'WebGUI::Asset::Shortcut');
 				push(@{$vars{"position1_loop"}},{
diff --git a/lib/WebGUI/Asset/Wobject/DataForm.pm b/lib/WebGUI/Asset/Wobject/DataForm.pm
index 4c2e2e5b9..854e5df59 100644
--- a/lib/WebGUI/Asset/Wobject/DataForm.pm
+++ b/lib/WebGUI/Asset/Wobject/DataForm.pm
@@ -437,7 +437,7 @@ Returns true if the DataForm uses a captcha as one of the fields.
 
 sub hasCaptcha {
     my $self = shift;
-    return isIn('Captcha', map { $_->{type} } map { $self->getFieldConfig($_) } @{ $self->getFieldOrder });
+    return 'Captcha' ~~ [map { $_->{type} } map { $self->getFieldConfig($_) } @{ $self->getFieldOrder })];
 }
 
 #-------------------------------------------------------------------
diff --git a/lib/WebGUI/Asset/Wobject/EventManagementSystem.pm b/lib/WebGUI/Asset/Wobject/EventManagementSystem.pm
index d9c718b6c..74ee0b983 100644
--- a/lib/WebGUI/Asset/Wobject/EventManagementSystem.pm
+++ b/lib/WebGUI/Asset/Wobject/EventManagementSystem.pm
@@ -398,7 +398,7 @@ sub getEventFieldsForImport {
 	foreach my $definition (@{WebGUI::Asset::Sku::EMSTicket->definition($self->session)}) {
 		$count++;
 		foreach my $field (keys %{$definition->{properties}}) {
-			next if ($count > 1 && !isIn($field, qw(title description)));
+			next if ($count > 1 && ! $field ~~ [qw(title description)]);
 			next unless ($definition->{properties}{$field}{label} ne "");
 			push(@fields, {
 				name 	 		=> $field,
@@ -1855,7 +1855,7 @@ className='WebGUI::Asset::Sku::EMSTicket' and state='published' and revisionDate
 	foreach my $id (@ids) {
 
 		# skip tickets we already have
-		if (isIn($id, @existingTickets)) {
+		if ($id ~~ @existingTickets) {
 			$totalTickets--;
 			next;
 		}
@@ -2125,7 +2125,7 @@ $|=1;
 				my $metadata = $event->getEventMetaData;
 				my $i = 0;
 				foreach my $field (@{$fields}) {
-					next unless isIn($field->{name}, @import);
+					next unless $field->{name} ~~ @import;
             		$out->print("\tAdding field ".$field->{label}."\n",1);
 					my $type = $field->{type};
                     ##Force the use of Form::DateTime and MySQL Format
diff --git a/lib/WebGUI/Asset/Wobject/Matrix.pm b/lib/WebGUI/Asset/Wobject/Matrix.pm
index cc66bca36..24d20f28c 100644
--- a/lib/WebGUI/Asset/Wobject/Matrix.pm
+++ b/lib/WebGUI/Asset/Wobject/Matrix.pm
@@ -1185,7 +1185,7 @@ sub www_getCompareFormData {
     }
     else {
         foreach my $result (@{$self->getListings}) {
-            if(WebGUI::Utility::isIn($result->{assetId},@listingIds)){
+            if($result->{assetId} ~~ @listingIds){
                 $result->{checked} = 'checked';
             }
             push @results, $result;
diff --git a/lib/WebGUI/Asset/Wobject/Navigation.pm b/lib/WebGUI/Asset/Wobject/Navigation.pm
index 96b909d7a..cd2aa7969 100644
--- a/lib/WebGUI/Asset/Wobject/Navigation.pm
+++ b/lib/WebGUI/Asset/Wobject/Navigation.pm
@@ -422,7 +422,7 @@ sub view {
 
 	my %rules;
 	$rules{endingLineageLength} = $start->getLineageLength+$self->descendantEndPoint;
-	$rules{assetToPedigree} = $current if (isIn("pedigree",@includedRelationships));
+	$rules{assetToPedigree} = $current if ("pedigree" ~~ @includedRelationships);
 	$rules{ancestorLimit} = $self->ancestorEndPoint;
 	$rules{orderByClause} = 'rpad(asset.lineage, 255, 9) desc' if ($self->reversePageLoop);
 	my $assetIter = $start->getLineageIterator(\@includedRelationships,\%rules);	
diff --git a/lib/WebGUI/Asset/Wobject/Thingy.pm b/lib/WebGUI/Asset/Wobject/Thingy.pm
index 8ecb4ad0b..8ec5109ce 100644
--- a/lib/WebGUI/Asset/Wobject/Thingy.pm
+++ b/lib/WebGUI/Asset/Wobject/Thingy.pm
@@ -975,7 +975,7 @@ sub getFormPlugin {
         }
     }
 
-    if ( WebGUI::Utility::isIn( $data->{fieldType}, qw(SelectList CheckList SelectBox Attachments) ) ) {
+    if ( $data->{fieldType} ~~ [qw(SelectList CheckList SelectBox Attachments) ] ) {
         my @values;
         if ( $useFormPostData && $session->form->param($name) ) {
             $param{ value } = [ $session->form->process( $name, $data->{fieldType} ) ];
@@ -1285,7 +1285,7 @@ sub importAssetCollateralData {
     # delete deleted things
     my $thingsInDatabase = $self->getThings;
     while (my $thingInDataBase = $thingsInDatabase->hashRef) {
-        if (!WebGUI::Utility::isIn($thingInDataBase->{thingId},@importThings)){
+        if (!$thingInDataBase->{thingId} ~~ @importThings){
         # delete thing
             $self->deleteThing($thingInDataBase->{thingId});
         }
@@ -1312,7 +1312,7 @@ sub importAssetCollateralData {
     my $fieldsInDatabase = $session->db->read('select fieldId, thingId from Thingy_fields where assetId = ?',
         [$self->getId]);
     while (my $fieldInDataBase = $fieldsInDatabase->hashRef) {
-        if (!WebGUI::Utility::isIn($fieldInDataBase->{fieldId},@importFields)){
+        if (!$fieldInDataBase->{fieldId} ~~ @importFields){
             # delete field
             $self->deleteField($fieldInDataBase->{fieldId},$fieldInDataBase->{thingId},"1");        
         }
diff --git a/lib/WebGUI/Asset/Wobject/UserList.pm b/lib/WebGUI/Asset/Wobject/UserList.pm
index 124b576f9..18f631397 100644
--- a/lib/WebGUI/Asset/Wobject/UserList.pm
+++ b/lib/WebGUI/Asset/Wobject/UserList.pm
@@ -227,7 +227,7 @@ sub getFormElement {
         $param{value} = ($data->{defaultValue} =~ /checked/xi) ? 1 : "";
     }
 
-    if (WebGUI::Utility::isIn($data->{fieldType},qw(SelectList CheckList SelectBox Attachments SelectSlider))) {
+    if ($data->{fieldType} ~~ [qw(SelectList CheckList SelectBox Attachments SelectSlider)]) {
         my @defaultValues;
         if ($self->session->form->param($name)) {
                     @defaultValues = $self->session->form->selectList($name);
@@ -358,7 +358,7 @@ sub view {
 
     my $currentUrlWithoutSort = $self->getUrl();
     foreach ($form->param) {
-        unless (WebGUI::Utility::isIn($_,qw(sortBy sortOrder op func)) || $_ =~ /identifier/i || $_ =~ /password/i) {
+        unless ( $_ ~~ [qw(sortBy sortOrder op func), qr/identifier/i, qr/password/i]) {
             $currentUrlWithoutSort = $url->append($currentUrlWithoutSort, $url->escape($_)
             .'='.$url->escape($form->process($_)));
         }
@@ -502,7 +502,7 @@ sub view {
     }
 
     my @sortByUserProperties = ('dateCreated', 'lastUpdated', 'karma', 'userId');
-    if(isIn($sortBy,@sortByUserProperties)){
+    if( $sortBy ~~ @sortByUserProperties ){
             $sortBy = 'users.'.$sortBy;
     }
     $sortBy = join '.', map { $dbh->quote_identifier($_) } split /\./, $sortBy;
@@ -550,7 +550,7 @@ sub view {
                     # Handle special case of alias, which does not have a default value but is set to the username by default
                     $value = $user->{userName} if ($profileFieldName eq 'alias' && $value eq '');
                     my %profileFieldValues;
-                    if (WebGUI::Utility::isIn(ucfirst $profileField->{fieldType},qw(File Image)) && $value ne ''){
+                    if ((ucfirst $profileField->{fieldType}) ~~ [qw(File Image)]) && $value ne ''){
                         my $file = WebGUI::Form::DynamicField->new($self->session,
                             fieldType=>$profileField->{fieldType},
                             value=>$value
diff --git a/lib/WebGUI/Asset/Wobject/WikiMaster.pm b/lib/WebGUI/Asset/Wobject/WikiMaster.pm
index 8a28657a7..74d7d24c9 100644
--- a/lib/WebGUI/Asset/Wobject/WikiMaster.pm
+++ b/lib/WebGUI/Asset/Wobject/WikiMaster.pm
@@ -195,7 +195,7 @@ with 'WebGUI::Role::Asset::RssFeed';
 use WebGUI::International;
 use HTML::Parser;
 use URI::Escape;
-use WebGUI::Utility qw/isIn/;
+use WebGUI::Utility qw//;
 use WebGUI::Form;
 use Clone qw/clone/;
 
@@ -390,8 +390,7 @@ sub autolinkHtml {
     my %mapping = $self->session->db->buildHash("SELECT LOWER(d.title), d.url FROM asset AS i INNER JOIN assetData AS d ON i.assetId = d.assetId WHERE i.parentId = ? and className='WebGUI::Asset::WikiPage' and i.state='published' and d.status='approved' order by d.revisionDate ASC", [$self->getId]);
     TITLE: foreach my $title (keys %mapping) {
         my $url = delete $mapping{$title};
-        ##isIn short circuits and is faster than grep and/or first
-        next TITLE if isIn($title, @skipTitles);
+        next TITLE if $title ~~ @skipTitles;
         $mapping{$title} = $self->session->url->gateway($url);
     }   
 
diff --git a/lib/WebGUI/AssetExportHtml.pm b/lib/WebGUI/AssetExportHtml.pm
index dd8579347..d98fdc970 100644
--- a/lib/WebGUI/AssetExportHtml.pm
+++ b/lib/WebGUI/AssetExportHtml.pm
@@ -250,11 +250,11 @@ sub exportAsHtml {
 
     # extrasUploadAction and rootUrlAction must have values matching something
     # in the arrays defined above
-    if( defined $extrasUploadAction && !WebGUI::Utility::isIn($extrasUploadAction, @extraUploadActions) ) {
+    if( defined $extrasUploadAction && !$extrasUploadAction ~~ @extraUploadActions ) {
         WebGUI::Error->throw(error => "'$extrasUploadAction' is not a valid extrasUploadAction");
     }
 
-    if( defined $rootUrlAction && !WebGUI::Utility::isIn($rootUrlAction, @rootUrlActions) ) {
+    if( defined $rootUrlAction && !$rootUrlAction ~~ @rootUrlActions ) {
         WebGUI::Error->throw(error => "'$rootUrlAction' is not a valid rootUrlAction");
     }
 
@@ -607,7 +607,7 @@ sub exportGetUrlAsPath {
     my $filename        = pop @pathComponents; 
 
     my ($extension) = $filename =~ /\.([^.]+)$/;
-    if ($extension && WebGUI::Utility::isIn($extension, @{ $fileTypes }) ) {
+    if ($extension && $extension ~~ $fileTypes ) {
         return Path::Class::File->new($exportPath, @pathComponents, $filename);
     }
     else {
diff --git a/lib/WebGUI/AssetLineage.pm b/lib/WebGUI/AssetLineage.pm
index 960e0f192..06b92bfb0 100644
--- a/lib/WebGUI/AssetLineage.pm
+++ b/lib/WebGUI/AssetLineage.pm
@@ -639,12 +639,12 @@ sub getLineageSql {
     my $lineage   = $self->lineage;
     my @whereModifiers;
     # let's get those siblings
-    if (isIn("siblings",@{$relatives})) {
+    if ("siblings" ~~ $relatives) {
         push(@whereModifiers, " (asset.parentId=".$db->quote($self->parentId)." and asset.assetId<>".$db->quote($self->getId).")");
     }
     # ancestors too
     my @specificFamilyMembers = ();
-    if (isIn("ancestors",@{$relatives})) {
+    if ("ancestors" ~~ $relatives) {
         my $i = 1;
         my @familyTree = ($lineage =~ /(.{6})/g);
         while (pop(@familyTree)) {
@@ -654,14 +654,14 @@ sub getLineageSql {
         }
 	}
 	# let's add ourself to the list
-	if (isIn("self",@{$relatives})) {
+	if ("self" ~~ $relatives) {
 		push(@specificFamilyMembers, $self->lineage);
 	}
 	if (scalar(@specificFamilyMembers) > 0) {
 		push(@whereModifiers,"(asset.lineage in (".$db->quoteAndJoin(\@specificFamilyMembers)."))");
 	}
 	# we need to include descendants
-	if (isIn("descendants",@{$relatives})) {
+	if ("descendants" ~~ $relatives) {
 		my $mod = "(asset.lineage like ".$db->quote($lineage.'_%'); 
 		if (exists $rules->{endingLineageLength}) {
 			$mod .= " and length(asset.lineage) <= ".($rules->{endingLineageLength}*6);
@@ -670,11 +670,11 @@ sub getLineageSql {
 		push(@whereModifiers,$mod);
 	}
 	# we need to include children
-	if (isIn("children",@{$relatives})) {
+	if ("children" ~~ $relatives) {
 		push(@whereModifiers,"(asset.parentId=".$db->quote($self->getId).")");
 	}
 	# now lets add in all of the siblings in every level between ourself and the asset we wish to pedigree
-	if (isIn("pedigree",@{$relatives}) && exists $rules->{assetToPedigree}) {
+	if ("pedigree" ~~ $relatives && exists $rules->{assetToPedigree}) {
         my $pedigreeLineage = $rules->{assetToPedigree}->lineage;
         if (substr($pedigreeLineage,0,length($lineage)) eq $lineage) {
             my @mods;
@@ -712,8 +712,8 @@ sub getLineageSql {
 	
     my $statusCodes = $rules->{statusToInclude} || [];
     if($rules->{includeArchived}) {
-	        push(@{$statusCodes},'archived') if(!WebGUI::Utility::isIn('archived',@{$statusCodes}));
-          	push(@{$statusCodes},'approved') if(!WebGUI::Utility::isIn('approved',@{$statusCodes}));
+	        push(@{$statusCodes},'archived') if(!'archived' ~~ $statusCodes);
+          	push(@{$statusCodes},'approved') if(!'approved' ~~ $statusCodes);
     }
     
     my $status = "assetData.status='approved'";
diff --git a/lib/WebGUI/AssetTrash.pm b/lib/WebGUI/AssetTrash.pm
index a89fe1cf0..9bce0a824 100644
--- a/lib/WebGUI/AssetTrash.pm
+++ b/lib/WebGUI/AssetTrash.pm
@@ -15,7 +15,7 @@ package WebGUI::Asset;
 =cut
 
 use strict;
-use WebGUI::Utility qw(isIn);
+use WebGUI::Utility qw();
 use Number::Format ();
 use JSON;
 
@@ -326,7 +326,7 @@ sub www_delete {
 	my $self = shift;
 	return $self->session->privilege->insufficient() unless ($self->canEdit && $self->canEditIfLocked);
 	return $self->session->privilege->vitalComponent() if $self->get('isSystem');
-	return $self->session->privilege->vitalComponent() if (isIn($self->getId, $self->session->setting->get("defaultPage"), $self->session->setting->get("notFoundPage")));
+	return $self->session->privilege->vitalComponent() if ($self->getId ~~ [$self->session->setting->get("defaultPage"), $self->session->setting->get("notFoundPage")]);
 	$self->trash;
     my $asset = $self->getContainer;
     if ($self->getId eq $asset->getId) {
diff --git a/lib/WebGUI/Auth.pm b/lib/WebGUI/Auth.pm
index 8f21cd39b..e8a090db1 100644
--- a/lib/WebGUI/Auth.pm
+++ b/lib/WebGUI/Auth.pm
@@ -800,7 +800,7 @@ Returns whether or not a method is callable
 
 sub isCallable {
 	my $self = shift;
-	return 1 if isIn($_[0],@{$self->{callable}});
+	return 1 if $_[0] ~~ $self->{callable};
         return 1 if $self->can( 'www_' . $_[0] );
         return 0;
 }
diff --git a/lib/WebGUI/Content/AssetDiscovery.pm b/lib/WebGUI/Content/AssetDiscovery.pm
index 0cec5beb9..f4f259acf 100644
--- a/lib/WebGUI/Content/AssetDiscovery.pm
+++ b/lib/WebGUI/Content/AssetDiscovery.pm
@@ -116,7 +116,7 @@ sub handler {
             while (my ($id) = $matchingAssets->array) {
                 my $asset = eval { WebGUI::Asset->newById($session, $id); };
                 if (! Exception::Class->caught() ) {
-                    if ($asset->canView && $asset->state eq 'published' && isIn($asset->status, 'approved', 'archived')) {
+                    if ($asset->canView && $asset->state eq 'published' && $asset->status ~~ ['approved', 'archived']) {
                         push @assets, {
                             title       => $asset->getTitle,
                             menuTitle   => $asset->menuTitle,
diff --git a/lib/WebGUI/Crud.pm b/lib/WebGUI/Crud.pm
index 305980f7a..6cfd6dd5d 100644
--- a/lib/WebGUI/Crud.pm
+++ b/lib/WebGUI/Crud.pm
@@ -445,7 +445,7 @@ sub crud_updateTable {
 	my $sth = $db->read("DESCRIBE ".$tableName);
 	my $tableKey = $class->crud_getTableKey($session);
 	while (my ($col, $type, $null, $key, $default) = $sth->array) {
-		next if (isIn($col, $tableKey, 'lastUpdated', 'dateCreated','sequenceNumber'));
+		next if ($col ~~ [$tableKey, 'lastUpdated', 'dateCreated','sequenceNumber']);
 		$tableFields{$col} = {
 			type	=> $type,
 			null	=> $null,
diff --git a/lib/WebGUI/DatabaseLink.pm b/lib/WebGUI/DatabaseLink.pm
index 7537058bd..e6c68b813 100644
--- a/lib/WebGUI/DatabaseLink.pm
+++ b/lib/WebGUI/DatabaseLink.pm
@@ -106,10 +106,10 @@ sub checkPrivileges {
     }
 
 	# Check if all required privs are present.
-	return 1 if (isIn('ALL PRIVILEGES', @privileges));
+	return 1 if ('ALL PRIVILEGES' ~~ @privileges);
 	
 	foreach (@{ $requestedPrivileges }) {
-		return 0 unless (isIn(uc($_), @privileges));
+		return 0 unless (uc($_) ~~ @privileges);
 	}
 
     return 1;
@@ -386,7 +386,7 @@ sub queryIsAllowed {
 
     my ($firstWord) = $query =~ /(\w+)/;
     $firstWord = lc $firstWord;
-    return isIn($firstWord, split(/\s+/, lc $self->{_databaseLink}{allowedKeywords})) ? 1 : 0;
+    return $firstWord ~~ [split(/\s+/, lc $self->{_databaseLink}{allowedKeywords})] ? 1 : 0;
 }
 
 #-------------------------------------------------------------------
diff --git a/lib/WebGUI/FilePump/Bundle.pm b/lib/WebGUI/FilePump/Bundle.pm
index b79f87c7c..8cce89cf9 100644
--- a/lib/WebGUI/FilePump/Bundle.pm
+++ b/lib/WebGUI/FilePump/Bundle.pm
@@ -38,7 +38,7 @@ it will return 0 and an error message.
 
 sub addFile {
     my ($self, $type, $uri) = @_;
-    return 0, 'Illegal type' unless WebGUI::Utility::isIn($type, 'JS', 'CSS', 'OTHER');
+    return 0, 'Illegal type' unless $type ~~ ['JS', 'CSS', 'OTHER'];
     return 0, 'No URI' unless $uri;
     my $collateralType = $type eq 'JS'  ? 'jsFiles'
                        : $type eq 'CSS' ? 'cssFiles'
@@ -412,7 +412,7 @@ types of files.
 
 sub deleteFiles {
     my ($self, $type) = @_;
-    return 0, 'Illegal type' unless WebGUI::Utility::isIn($type, 'JS', 'CSS', 'OTHER');
+    return 0, 'Illegal type' unless $type ~~ ['JS', 'CSS', 'OTHER'];
     my $collateralType = $type eq 'JS'  ? 'jsFiles'
                        : $type eq 'CSS' ? 'cssFiles'
                        : 'otherFiles';
@@ -440,7 +440,7 @@ The unique collateral GUID to delete from the bundle.
 
 sub deleteFile {
     my ($self, $type, $fileId) = @_;
-    return 0, 'Illegal type' unless WebGUI::Utility::isIn($type, 'JS', 'CSS', 'OTHER');
+    return 0, 'Illegal type' unless $type ~~ ['JS', 'CSS', 'OTHER'];
     return 0, 'No fileId' unless $fileId;
     my $collateralType = $type eq 'JS'  ? 'jsFiles'
                        : $type eq 'CSS' ? 'cssFiles'
@@ -714,7 +714,7 @@ The unique collateral GUID to move in the bundle.
 
 sub moveFileDown {
     my ($self, $type, $fileId) = @_;
-    return 0, 'Illegal type' unless WebGUI::Utility::isIn($type, 'JS', 'CSS', 'OTHER');
+    return 0, 'Illegal type' unless $type ~~ ['JS', 'CSS', 'OTHER'];
     return 0, 'No fileId' unless $fileId;
     my $collateralType = $type eq 'JS'  ? 'jsFiles'
                        : $type eq 'CSS' ? 'cssFiles'
@@ -748,7 +748,7 @@ The unique collateral GUID to move in the bundle.
 
 sub moveFileUp {
     my ($self, $type, $fileId) = @_;
-    return 0, 'Illegal type' unless WebGUI::Utility::isIn($type, 'JS', 'CSS', 'OTHER');
+    return 0, 'Illegal type' unless $type ~~ ['JS', 'CSS', 'OTHER'];
     return 0, 'No fileId' unless $fileId;
     my $collateralType = $type eq 'JS'  ? 'jsFiles'
                        : $type eq 'CSS' ? 'cssFiles'
diff --git a/lib/WebGUI/Form/Image.pm b/lib/WebGUI/Form/Image.pm
index 2e51a51b5..f96e5b186 100644
--- a/lib/WebGUI/Form/Image.pm
+++ b/lib/WebGUI/Form/Image.pm
@@ -19,7 +19,7 @@ use base 'WebGUI::Form::File';
 use WebGUI::International;
 use WebGUI::Storage;
 use WebGUI::Form::YesNo;
-use WebGUI::Utility qw/isIn/;
+use WebGUI::Utility qw//;
 
 =head1 NAME
 
@@ -141,7 +141,7 @@ sub getValue {
 			my @files = @{$storage->getFiles};
 			my @images = grep{$storage->isImage($_)} @files; # Put all filenames that isImage returns true for into @images
 			if ($self->get('forceImageOnly')) {
-				$storage->deleteFile($_) for grep{!isIn($_, @images)} @files; # Search @files for filenames that are not in @images and delete them
+				$storage->deleteFile($_) for grep{ ! $_ ~~ @images } @files; # Search @files for filenames that are not in @images and delete them
 				@files = @images;
 			}
 
diff --git a/lib/WebGUI/Friends.pm b/lib/WebGUI/Friends.pm
index 210505295..cea5a30f9 100644
--- a/lib/WebGUI/Friends.pm
+++ b/lib/WebGUI/Friends.pm
@@ -249,7 +249,7 @@ The userId to check against this user.
 sub isFriend {
     my $self = shift;
     my $userId = shift;
-    return isIn($userId, @{$self->user->friends->getUsers});    
+    return $userId ~~ $self->user->friends->getUsers;
 }
 
 #-------------------------------------------------------------------
diff --git a/lib/WebGUI/Group.pm b/lib/WebGUI/Group.pm
index e4e10f51b..6db9c3d9e 100644
--- a/lib/WebGUI/Group.pm
+++ b/lib/WebGUI/Group.pm
@@ -136,7 +136,7 @@ sub addGroups {
 		my ($isIn) = $self->session->db->quickArray("select count(*) from groupGroupings where groupId=? and inGroup=?", [$gid, $self->getId]);
         next GROUP if $isIn;
 		my $group = WebGUI::Group->new($self->session, $gid);
-		my $recursive = isIn($self->getId, @{$group->getGroupsIn(1)});
+		my $recursive = $self->getId ~~ $group->getGroupsIn(1);
         next GROUP if $recursive;
         $self->session->db->write("insert into groupGroupings (groupId,inGroup) values (?,?)",[$gid, $self->getId]);
 	}
@@ -1981,7 +1981,7 @@ sub vitalGroup {
     if (! $groupId && ref $class ) {
         $groupId = $class->getId;
     }
-    return isIn ( $groupId, (1..17), qw/pbgroup000000000000015 pbgroup000000000000016 pbgroup000000000000017 / );
+    return $groupId ~~ [ map { "$_" } (1..17), qw/pbgroup000000000000015 pbgroup000000000000016 pbgroup000000000000017 /];
 }
 
 1;
diff --git a/lib/WebGUI/Image/Graph.pm b/lib/WebGUI/Image/Graph.pm
index 3e598b90f..69301d8e6 100644
--- a/lib/WebGUI/Image/Graph.pm
+++ b/lib/WebGUI/Image/Graph.pm
@@ -609,7 +609,7 @@ sub processConfigurationForm {
 	my $namespace = "WebGUI::Image::".$session->form->process('graphingPlugin');
 	$namespace =~ s/_/::/g;
 
-     if (! isIn($namespace, @{$class->getPluginList($session)})) {
+     if (! $namespace ~~ $class->getPluginList($session)) {
 	     WebGUI::Error->throw(error => "Graphing plugin not available")
      }
 
diff --git a/lib/WebGUI/Inbox.pm b/lib/WebGUI/Inbox.pm
index b562baca9..e19939f24 100644
--- a/lib/WebGUI/Inbox.pm
+++ b/lib/WebGUI/Inbox.pm
@@ -375,7 +375,7 @@ sub getMessagesPaginator {
     my $whereClause   = $properties->{whereClause} || '';
 
     #Make sure a valid sortBy is passed in
-    if($sortBy && !WebGUI::Utility::isIn($sortBy,qw( subject sentBy dateStamp status ))) {
+    if($sortBy && !$sortBy ~~ [qw( subject sentBy dateStamp status )]) {
         $sortBy = q{dateStamp}
     }
     #Sort by fullname if user wants to sort by who sent the message
diff --git a/lib/WebGUI/Macro/RandomThread.pm b/lib/WebGUI/Macro/RandomThread.pm
index a1e43ee89..468234da0 100644
--- a/lib/WebGUI/Macro/RandomThread.pm
+++ b/lib/WebGUI/Macro/RandomThread.pm
@@ -75,7 +75,7 @@ sub process {
 	}
 
 	$relatives = lc($relatives);
-	unless ( isIn($relatives, ('siblings','children','ancestors','self','descendants','pedigree')) ) {
+	unless ( $relatives ~~ ['siblings','children','ancestors','self','descendants','pedigree'] ) {
 		$session->errorHandler->warn('Error: invalid relatives specified. Must be one of siblings, children, ancestors, self, descendants, pedigree. Check parameters of macro on page '.$session->asset->url);
 		return '';
 	}
diff --git a/lib/WebGUI/Operation/SpellCheck.pm b/lib/WebGUI/Operation/SpellCheck.pm
index 5ed94ac35..566a2485d 100644
--- a/lib/WebGUI/Operation/SpellCheck.pm
+++ b/lib/WebGUI/Operation/SpellCheck.pm
@@ -57,7 +57,7 @@ sub _getSpeller {
     # Get language
     my $speller = Text::Aspell->new;
     die "Language not available in server side spellcheck"
-        unless (isIn($lang, map {m/^.*?:([^:]*):.*?$/} $speller->list_dictionaries));
+        unless ($lang ~~ [map {m/^.*?:([^:]*):.*?$/} $speller->list_dictionaries]);
 
     # User homedir
     my $homeDir = $session->config->get('uploadsPath').'/dictionaries/';
diff --git a/lib/WebGUI/ProfileCategory.pm b/lib/WebGUI/ProfileCategory.pm
index d78a437b0..2f4ab10e6 100644
--- a/lib/WebGUI/ProfileCategory.pm
+++ b/lib/WebGUI/ProfileCategory.pm
@@ -151,7 +151,7 @@ sub getCategories {
     my $bindvars    = [];
 
     foreach my $key (keys %{$options}) {
-        next unless WebGUI::Utility::isIn($key,qw(editable visible));
+        next unless $key ~~ [qw(editable visible)];
         $whereClause .= " and" unless ($whereClause eq "");
         $whereClause .= " $key=?";
         push(@{$bindvars},$options->{$key});
@@ -214,7 +214,7 @@ sub getFields {
 
     foreach my $key (keys %{$options}) {
         #Skip bad stuff that will crash the query
-        next unless WebGUI::Utility::isIn($key,qw(editable visible required));
+        next unless $key ~~ [qw(editable visible required)];
         $whereClause .= " and $key=?";
         push(@{$bindvars},$options->{$key});
     }
diff --git a/lib/WebGUI/ProfileField.pm b/lib/WebGUI/ProfileField.pm
index c70d52e04..f25e3f6d1 100644
--- a/lib/WebGUI/ProfileField.pm
+++ b/lib/WebGUI/ProfileField.pm
@@ -67,7 +67,7 @@ Return true iff fieldName is reserved and therefore not usable as a profile fiel
 sub isReservedFieldName {
     my $class = shift;
     my $fieldName = shift;
-    return isIn($fieldName, qw/userId shop specialState func op wg_privacySettings username authMethod dateCreated lastUpdated karma status referringAffiliate friendsGroup/);
+    return $fieldName ~~ [qw/userId shop specialState func op wg_privacySettings username authMethod dateCreated lastUpdated karma status referringAffiliate friendsGroup/];
 }
 
 #-------------------------------------------------------------------
diff --git a/lib/WebGUI/Session/DateTime.pm b/lib/WebGUI/Session/DateTime.pm
index 19e7768a6..757362dde 100644
--- a/lib/WebGUI/Session/DateTime.pm
+++ b/lib/WebGUI/Session/DateTime.pm
@@ -22,7 +22,7 @@ use DateTime::TimeZone;
 use Scalar::Util qw( weaken );
 use Tie::IxHash;
 use WebGUI::International;
-use WebGUI::Utility qw(isIn);
+use WebGUI::Utility qw();
 use Scalar::Util qw(weaken);
 
 
@@ -609,7 +609,7 @@ sub getTimeZone {
 	my $zone = $self->session->user->profileField('timeZone');
 	$zone =~ s/ /\_/g;
 	if ($zone) {
-        if (isIn($zone, @zones)) {
+        if ( $zone ~~ @zones ) {
 				$self->session->user->{_timeZone} = $zone;
 				return $zone;
 		}
diff --git a/lib/WebGUI/Session/Http.pm b/lib/WebGUI/Session/Http.pm
index 7079ca005..2c9b0916c 100644
--- a/lib/WebGUI/Session/Http.pm
+++ b/lib/WebGUI/Session/Http.pm
@@ -17,7 +17,7 @@ package WebGUI::Session::Http;
 
 use strict;
 use Scalar::Util qw(weaken);
-use WebGUI::Utility qw(isIn);
+use WebGUI::Utility qw();
 use HTTP::Date ();
 
 sub _deprecated {
diff --git a/lib/WebGUI/Session/Url.pm b/lib/WebGUI/Session/Url.pm
index cc8fac68d..d4874efd2 100644
--- a/lib/WebGUI/Session/Url.pm
+++ b/lib/WebGUI/Session/Url.pm
@@ -349,7 +349,7 @@ sub getSiteURL {
         my $site = "";
         my $sitenames = $self->session->config->get("sitename");
         my ($http_host,$currentPort) = split(':', $self->session->request->env->{"HTTP_HOST"});
-        if ($self->session->setting->get("hostToUse") eq "HTTP_HOST" and isIn($http_host,@{$sitenames})) {
+        if ($self->session->setting->get("hostToUse") eq "HTTP_HOST" and $http_host ~~ $sitenames) {
                 $site = $http_host;
         } else {
                 $site = $sitenames->[0];
diff --git a/lib/WebGUI/Shop/TaxDriver/EU.pm b/lib/WebGUI/Shop/TaxDriver/EU.pm
index 77b1291b9..81e093298 100644
--- a/lib/WebGUI/Shop/TaxDriver/EU.pm
+++ b/lib/WebGUI/Shop/TaxDriver/EU.pm
@@ -18,7 +18,7 @@ use strict;
 
 use WebGUI::Content::Account;
 use WebGUI::TabForm;
-use WebGUI::Utility qw{ isIn };
+use WebGUI::Utility qw{};
 use WebGUI::International;
 
 use Business::Tax::VAT::Validation;
diff --git a/lib/WebGUI/Shop/Vendor.pm b/lib/WebGUI/Shop/Vendor.pm
index 4584aa601..d8be81d05 100644
--- a/lib/WebGUI/Shop/Vendor.pm
+++ b/lib/WebGUI/Shop/Vendor.pm
@@ -91,7 +91,7 @@ around BUILDARGS => sub {
 use WebGUI::Shop::Admin;
 use WebGUI::Exception::Shop;
 use WebGUI::International;
-use WebGUI::Utility qw{ isIn };
+use WebGUI::Utility qw{};
 use List::Util qw{ sum };
 use JSON qw{ encode_json };
 
@@ -646,7 +646,7 @@ sub www_setPayoutStatus {
     return $session->privilege->adminOnly() unless ($admin->canManage);
 
     my $status  = $form->process('status');
-    return "error: wrong status [$status]" unless isIn( $status, qw{ NotPaid Scheduled } );
+    return "error: wrong status [$status]" unless $status ~~ [qw{ NotPaid Scheduled }];
 
     my @itemIds;
     if ( $form->process( 'all' ) ) {
diff --git a/lib/WebGUI/Storage.pm b/lib/WebGUI/Storage.pm
index 8b579899c..171d8b0dd 100644
--- a/lib/WebGUI/Storage.pm
+++ b/lib/WebGUI/Storage.pm
@@ -25,7 +25,7 @@ use File::Spec;
 use Image::Magick;
 use Path::Class::Dir;
 use Storable ();
-use WebGUI::Utility qw(isIn);
+use WebGUI::Utility qw();
 use WebGUI::Paths;
 use JSON ();
 
@@ -507,7 +507,7 @@ sub block_extensions {
     my $self = shift;
     my $file = shift;
     my $extension = $self->getFileExtension($file);
-    if (isIn($extension, qw(pl perl sh cgi php asp pm html htm))) {
+    if ($extension ~~ [qw(pl perl sh cgi php asp pm html htm)]) {
         $file =~ s/\.$extension/\_$extension/;
         $file .= ".txt";
     }
@@ -570,7 +570,7 @@ sub copy {
     my $newStorage = shift || WebGUI::Storage->create($self->session);
     my $filelist   = shift || $self->getFiles('all');
     FILE: foreach my $file (@{$filelist}) {
-        next if isIn($file, '.cdn', '.');
+        next if $file ~~ ['.cdn', '.'];
         my $origFile = $self->getPath($file);
         my $copyFile = $newStorage->getPath($file);
         if (-d $origFile) {
@@ -1332,7 +1332,7 @@ The file to check.
 sub isImage {
 	my $self = shift;
 	my $filename = shift;
-	return isIn($self->getFileExtension($filename), qw(jpeg jpg gif png))
+	return $self->getFileExtension($filename) ~~ [qw(jpeg jpg gif png)];
 }
 
 
diff --git a/lib/WebGUI/User.pm b/lib/WebGUI/User.pm
index d459a5cce..2bc735b16 100644
--- a/lib/WebGUI/User.pm
+++ b/lib/WebGUI/User.pm
@@ -87,7 +87,7 @@ sub _create {
     foreach my $field (@fields) {
         #$session->errorHandler->warn('getting privacy setting for field: '.$fieldName);
         my $privacySetting = $field->get('defaultPrivacySetting');
-        next unless (WebGUI::Utility::isIn($privacySetting,qw(all none friends)));
+        next unless $privacySetting ~~ [qw(all none friends)];
         $privacy->{$field->get('fieldName')} = $privacySetting;
     }
     my $json = JSON->new->encode($privacy);
@@ -210,7 +210,7 @@ sub authInstance {
     else {
         $authMethod = $self->authMethod || $session->setting->get("authMethod");
     }
-    if ( ! isIn($authMethod, @{ $session->config->get('authMethods') } ) ) {
+    if ( ! $authMethod ~~ $session->config->get('authMethods') ) {
         $authMethod = $session->config->get('authMethods')->[0] || 'WebGUI';
     }
     my $authClass = 'WebGUI::Auth::' . $authMethod;
@@ -333,7 +333,7 @@ sub canViewField {
     return 1 if ($self->userId eq $user->userId);
     
     my $privacySetting = $self->getProfileFieldPrivacySetting($field);
-    return 0 unless (WebGUI::Utility::isIn($privacySetting,qw(all none friends)));
+    return 0 unless $privacySetting ~~ [qw(all none friends)];
     return 1 if ($privacySetting eq "all");
     return 0 if ($privacySetting eq "none");
 
@@ -1286,7 +1286,7 @@ sub setProfileFieldPrivacySetting {
     
     foreach my $fieldId (keys %{$settings}) {
         my $privacySetting = $settings->{$fieldId};
-        next unless (WebGUI::Utility::isIn($privacySetting,qw(all none friends)));
+        next unless $privacySetting ~~ [qw(all none friends)];
         $currentSettings->{$fieldId} = $settings->{$fieldId};
     }
     
diff --git a/lib/WebGUI/Utility.pm b/lib/WebGUI/Utility.pm
index 1678fa680..7bba87659 100644
--- a/lib/WebGUI/Utility.pm
+++ b/lib/WebGUI/Utility.pm
@@ -23,7 +23,7 @@ use Net::CIDR::Lite;
 
 our @ISA = qw(Exporter);
 our @EXPORT = qw(
-	&sortHash &isIn
+	&sortHash
 	);
 
 
@@ -38,7 +38,6 @@ This package provides miscellaneous but useful utilities to the WebGUI programme
 =head1 SYNOPSIS
 
  use WebGUI::Utility;
- $boolean = isIn($value, @array);
  %hash = sortHash(%hash);
 
 =head1 METHODS
@@ -49,28 +48,6 @@ These subroutines are available from this package:
 
 #-------------------------------------------------------------------
 
-=head2 isIn ( value, list )
-
-Returns a boolean value as to whether the value is in the array.
-
-=head3 value
-
-The value to check for.
-
-=head3 list
-
-An array to look for the value in.
-
-=cut
-
-sub isIn {
-	my $key = shift;
-	$_ eq $key and return 1 for @_;
-	return 0;
-}
-
-#-------------------------------------------------------------------
-
 =head2 sortHash ( hash )
 
 Sorts a hash by its values. Returns a Tie::IxHash.  You must assign this to
diff --git a/lib/WebGUI/VersionTag.pm b/lib/WebGUI/VersionTag.pm
index d62eadaa6..61d8249ba 100644
--- a/lib/WebGUI/VersionTag.pm
+++ b/lib/WebGUI/VersionTag.pm
@@ -491,7 +491,7 @@ sub getVersionTagMode {
     $mode = $session->user()->profileField(q{versionTagMode});
 
     #verify mode.
-    if (!(defined $mode && WebGUI::Utility::isIn($mode, qw{autoCommit siteWide singlePerUser multiPerUser}))) {
+    if (!(defined $mode && $mode ~~ [qw{autoCommit siteWide singlePerUser multiPerUser}])) {
         $mode = q{};
     }
 
diff --git a/lib/WebGUI/Workflow/Activity/SyncProfilesToLdap.pm b/lib/WebGUI/Workflow/Activity/SyncProfilesToLdap.pm
index 42382df24..52d46e233 100644
--- a/lib/WebGUI/Workflow/Activity/SyncProfilesToLdap.pm
+++ b/lib/WebGUI/Workflow/Activity/SyncProfilesToLdap.pm
@@ -163,9 +163,9 @@ sub execute {
 		my $result = $ldap->search(base => $userData->{connectDN},
 					   filter => "&(objectClass=*)");
 
-		if ($result->code && !isIn($result->code, @noResultsCodes)) {
+		if ($result->code && ! $result->code ~~ @noResultsCodes) {
 			$self->session->errorHandler->error("SyncProfilesToLdap: Couldn't search LDAP link $ldapUrl ($currentLinkId) to find user $username ($userId) with DN ".$userData->{connectDN}.": LDAP returned: ".$ldapStatusCode{$result->code});
-		} elsif (isIn($result->code, @noResultsCodes) || $result->count == 0) {
+		} elsif ($result->code ~~ @noResultsCodes || $result->count == 0) {
 			$self->session->errorHandler->warn("SyncProfilesToLdap: No results returned by LDAP server for user with dn ".$userData->{connectDN});
 		} else {
 			my $entry = $result->entry(0);
diff --git a/sbin/fileImport.pl b/sbin/fileImport.pl
index 3c00104be..c10838278 100755
--- a/sbin/fileImport.pl
+++ b/sbin/fileImport.pl
@@ -121,7 +121,7 @@ sub addFiles {
 		print "\tAdding ".$file->{fullPathFile}." to the database.\n" unless ($quiet);	
 
 		# Figure out whether the file is an image or not by its extension.
-		if (isIn(lc($file->{ext}),@nailable)) {
+		if (lc($file->{ext}) ~~ @nailable) {
 			$class = 'WebGUI::Asset::File::Image';
 			$templateId = 'PBtmpl0000000000000088';
 		}
diff --git a/sbin/rebuildLineage.pl b/sbin/rebuildLineage.pl
index a8d652634..c87c6cac0 100755
--- a/sbin/rebuildLineage.pl
+++ b/sbin/rebuildLineage.pl
@@ -43,7 +43,7 @@ print "\nLooking for orphans...\n" unless ($quiet);
 my $orphansFound = 0;
 my $rs = $session->db->read("select assetId from asset order by lineage");
 while (my ($id) = $rs->array) {
-	unless (isIn($id, @found)) {
+	unless ($id ~~ @found) {
 		print "\tFound an orphan with an assetId of $id. Moving it to the import node.\n";
 		$session->db->write("update asset set parentId='PBasset000000000000002' where assetId=?",[$id]);
 		getDescendants($id);
@@ -80,7 +80,7 @@ print "\nDon't forget to clear your cache.\n" unless ($quiet);
 sub getDescendants {
 	my $parentId = shift;
     my $depth = shift || 0;
-    if (isIn($parentId, @found)) {
+    if ($parentId ~~ @found) {
 		print "\nFound circular relationships involving $parentId. This requires manual intervention.\n" unless ($quiet);
 		exit;
 	}
diff --git a/sbin/testEnvironment.pl b/sbin/testEnvironment.pl
index ac8c71892..b62c88908 100755
--- a/sbin/testEnvironment.pl
+++ b/sbin/testEnvironment.pl
@@ -398,13 +398,6 @@ sub installModule {
         chdir $cwd;
 }
 
-#----------------------------------------
-sub isIn {
-        my $key = shift;
-        $_ eq $key and return 1 for @_;
-        return 0;
-}
-
 #----------------------------------------
 sub isRootRequirementMet {
     if (getOs() eq "Linuxish")	 {
@@ -437,7 +430,7 @@ sub prompt {
         my $answer = <STDIN>;
         chomp $answer;
         $answer = $default if ($answer eq "");
-        $answer = prompt($question,$default,@answers) if (($#answers > 0 && !(isIn($answer,@answers))) || $answer eq "");
+        $answer = prompt($question,$default,@answers) if (($#answers > 0 && !($answer ~~ @answers)) || $answer eq "");
         return $answer;
 }
 
diff --git a/sbin/thumbnailer.pl b/sbin/thumbnailer.pl
index 4fe33e77c..83858562d 100755
--- a/sbin/thumbnailer.pl
+++ b/sbin/thumbnailer.pl
@@ -72,7 +72,7 @@ sub createThumbnail {
         ($x, $y) = $image->Get('width','height');
         $r = $x>$y ? $x / $thumbnailSize : $y / $thumbnailSize;
         $image->Scale(width=>($x/$r),height=>($y/$r)) if ($r > 0);
-        if (isIn($type, qw(tif tiff bmp))) {
+        if ( $type ~~ [qw(tif tiff bmp)] ) {
                 $image->Write('thumb-'.$fileName.'.png');
         } else {
                 $image->Write($_[1].'/thumb-'.$fileName);
@@ -88,7 +88,7 @@ sub shouldThumbnail {
     return 0 if $fileName =~ m/thumb-/;
 
     ##I am not a graphics file, skip me
-    return 0 if !isIn($fileType, qw(jpg jpeg gif png tif tiff bmp));
+    return 0 if ! $fileType ~~ [qw(jpg jpeg gif png tif tiff bmp)];
 
     ##My thumbnail already exists and I was told not to do it again
     return 0 if ($onlyMissingThumbnails && -e 'thumb-'.$fileName);
diff --git a/sbin/userImport.pl b/sbin/userImport.pl
index f040b9951..c0b32d6b2 100755
--- a/sbin/userImport.pl
+++ b/sbin/userImport.pl
@@ -174,7 +174,7 @@ while(my $line = <FILE>) {
             if $user{connectDN};
         $auth->saveParams($u->userId,"WebGUI",{changePassword=>$user{changePassword}});
         foreach my $field (keys %user) {
-            if (isIn($field, @profileFields)) {
+            if ($field ~~ @profileFields) {
                 $u->profileField($field,$user{$field});
             }
         }
diff --git a/t/Asset/Asset_diagnose.t b/t/Asset/Asset_diagnose.t
index 6c4d11893..f34fc4c2d 100644
--- a/t/Asset/Asset_diagnose.t
+++ b/t/Asset/Asset_diagnose.t
@@ -21,7 +21,7 @@ use Test::Deep;
 
 my $session = WebGUI::Test->session;
 
-my @assets = grep { !isIn($_, qw/WebGUI::Asset::FilePile/) } (
+my @assets = grep { $_ ne 'WebGUI::Asset::FilePile' } (
     keys %{ $session->config->get('assets') }
 );
 
diff --git a/t/Asset/Wobject/StoryArchive.t b/t/Asset/Wobject/StoryArchive.t
index a76bcdb02..454bcf890 100644
--- a/t/Asset/Wobject/StoryArchive.t
+++ b/t/Asset/Wobject/StoryArchive.t
@@ -247,7 +247,7 @@ cmp_deeply(
 );
 
 KEY: foreach my $key (keys %{ $templateVars }) {
-    next KEY if isIn($key, qw/canPostStories addStoryUrl date_loop mode/);
+    next KEY if $key ~~ [qw/canPostStories addStoryUrl date_loop mode/];
     delete $templateVars->{$key};
 }
 
@@ -305,7 +305,7 @@ $session->user({userId => 3});
 
 $templateVars = $archive->viewTemplateVariables();
 KEY: foreach my $key (keys %{ $templateVars }) {
-    next KEY if isIn($key, qw/canPostStories addStoryUrl date_loop/);
+    next KEY if $key ~~ [qw/canPostStories addStoryUrl date_loop/];
     delete $templateVars->{$key};
 }
 
diff --git a/t/Form/ProfileEnabled.t b/t/Form/ProfileEnabled.t
index abe770e10..4a8ffd61f 100644
--- a/t/Form/ProfileEnabled.t
+++ b/t/Form/ProfileEnabled.t
@@ -43,7 +43,7 @@ my @notEnabled = qw/Button Control List MimeType SubscriptionGroup Slider Submit
 foreach my $formType (@formTypes) {
 	my $form = WebGUI::Form::DynamicField->new($session, fieldType => $formType);
 	my $ref = (split /::/, ref $form)[-1];
-	if (isIn($ref, @notEnabled)) {
+	if ($ref ~~ @notEnabled) {
 		ok(!$form->isDynamicCompatible, " $ref should not be profile enabled");
 	}
 	else {
diff --git a/t/Group.t b/t/Group.t
index 7929b7eda..942844561 100644
--- a/t/Group.t
+++ b/t/Group.t
@@ -485,10 +485,10 @@ is( $session->stow->get('isInGroup'), undef, 'setting dbQuery clears cached isIn
 is( $mob[0]->isInGroup($gY->getId), 1, 'mob[0] is in group Y after setting dbQuery');
 is( $mob[0]->isInGroup($gZ->getId), 1, 'mob[0] isInGroup Z');
 
-ok( isIn($mob[0]->userId, @{ $gY->getAllUsers() }), 'mob[0] in list of group Y users');
-ok( !isIn($mob[0]->userId, @{ $gZ->getUsers() }), 'mob[0] not in list of group Z users');
+ok( $mob[0]->userId ~~ $gY->getAllUsers, 'mob[0] in list of group Y users');
+ok( ! $mob[0]->userId ~~ $gZ->getUsers, 'mob[0] not in list of group Z users');
 
-ok( isIn($mob[0]->userId, @{ $gZ->getAllUsers() }), 'mob[0] in list of group Z users, recursively');
+ok( $mob[0]->userId ~~ $gZ->getAllUsers, 'mob[0] in list of group Z users, recursively');
 
 $gY->clearCaches;
 
diff --git a/t/Session/Id.t b/t/Session/Id.t
index ad78068f9..3a9c28d5d 100644
--- a/t/Session/Id.t
+++ b/t/Session/Id.t
@@ -62,7 +62,7 @@ my $isValid = 1;
 for (1..2000) {
 	last unless $isUnique;
 	my $id = $session->id->generate();
-	$isUnique = ($isUnique ? !isIn($id,@uniqueIds) : 0);
+	$isUnique = ($isUnique ? ! $id ~~ @uniqueIds : 0);
 	$isValid = ($isValid ? $session->id->valid($id) : 0);
 	push(@uniqueIds,$id);
 }
diff --git a/t/Utility.t b/t/Utility.t
index e553050d5..51e6b6918 100644
--- a/t/Utility.t
+++ b/t/Utility.t
@@ -20,9 +20,6 @@ use Test::Deep;
 
 my $session = WebGUI::Test->session;
 
-# isIn
-ok(WebGUI::Utility::isIn("webgui", qw(cars trucks webgui trains)), 'isIn()');
-
 {
 	# Just some basic tests for now.
 
diff --git a/t/Workflow.t b/t/Workflow.t
index a59c8bab4..af21d71d3 100644
--- a/t/Workflow.t
+++ b/t/Workflow.t
@@ -13,7 +13,6 @@ use WebGUI::Test;
 use WebGUI::Session;
 use WebGUI::Workflow;
 use WebGUI::Workflow::Cron;
-use WebGUI::Utility qw/isIn/;
 use Test::More tests => 75; # increment this value for each test you create
 use Test::Deep;