feat: add count tag

README.md

@@ -9,7 +9,7 @@ A Statamic addon that provides a custom tag for creating an anchor nav for all h
 
 ## How to install
 
-You can search for this addon in the `Tools > Addons` section of the Statamic control panel and click **install**, or run the following command from your project root:
+Run the following command from your project root:
 
 ``` bash
 composer require visuellverstehen/statamic-anchor-navigation
@@ -28,6 +28,14 @@ Include the `{{ anchor_navigation }}` tag in your template and supply the field
 </ul>
 ```
 
+You can get the amount of headings found within the content with the `count` tag:
+
+```
+{{ if {anchor_navigation:count from="bard"} > 0 }}
+    ...
+{{ /if }}
+```
+
 ## Configurations
 
 You can define which heading levels should be included in your anchor navigation. Level 2 headings are set as a default.

src/Tags/AnchorNavigation.php

@@ -39,6 +39,13 @@ public function index(): ?array
 
         return self::collectHeadings();
     }
+
+    public function count(): int
+    {
+        $headings = self::index() ?? [];
+
+        return count($headings);
+    }
 
     private function defineAugmentor(): Augmentor
     {