[FEATURE] Add IsEmptyViewHelper

Classes/ViewHelpers/IsEmptyViewHelper.php

@@ -0,0 +1,20 @@
+<?php
+namespace Cjel\TemplatesAide\ViewHelpers;
+
+use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
+use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
+use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
+
+class IsEmptyViewHelper extends AbstractViewHelper
+{
+    public static function renderStatic(
+        array $arguments,
+        \Closure $renderChildrenClosure,
+        RenderingContextInterface $renderingContext
+    ) {
+        if (empty($renderChildrenClosure())) {
+            return true;
+        }
+        return false;
+    }
+}