com_ajax Stringable interface

migrations/51-52/new-features.md

@@ -16,3 +16,49 @@ This new feature adds a "total" counter at the bottom near the pagination in Joo
 displaying the number of items available after applying filters for easier item management.
 
 PR: [43575](https://github.com/joomla/joomla-cms/pull/43575)
+
+### com_ajax support Stringable result
+
+Allows to customise the response for com_ajax, with help of `Joomla\CMS\String\StringableInterface`.
+
+PR: https://github.com/joomla/joomla-cms/pull/43530
+
+Example of Module helper getAjax() method, with `&format=json` request. 
+**Before:**
+```php
+function getAjax() {
+    echo json_encode(['title' => 'Foo', 'text' => 'Bar']);
+    exit;
+}
+```
+**After:**
+```php
+function getAjax() {
+    $result = new class() implements \Joomla\CMS\String\StringableInterface {
+        public $title = '';
+        public $text = '';
+
+        public function __toString(): string
+        {
+          return json_encode($this);
+        }
+    };
+
+    $result->title = 'Foo';
+    $result->text = 'Bar';
+
+    return $result;
+}
+```
+
+Example of customised `Joomla\CMS\Response\JsonResponse` response:
+
+```php
+function getAjax() {
+    $data   = $this->getData(); //... code to load your data
+    $result = new class($data, null, false, false) extends \Joomla\CMS\Response\JsonResponse implements \Joomla\CMS\String\StringableInterface {};
+
+    return $result;
+}
+```
+