fixing

Author: ahjdev

src/HtmlClass.php

@@ -2,10 +2,11 @@
 
 namespace AhjDev\PhpTagMaker;
 
+use Countable;
 use Stringable;
 use IteratorAggregate;
 
-final class HtmlClass implements Stringable, IteratorAggregate
+final class HtmlClass implements Stringable, IteratorAggregate, Countable
 {
     private array $classList = [];
 
@@ -65,6 +66,11 @@ public function asArray(): array
         return $this->classList;
     }
 
+    public function count(): int
+    {
+        return count($this->classList);
+    }
+
     public function getIterator(): \Generator
     {
         return yield from $this->classList;

src/Node/HtmlTag.php

@@ -57,11 +57,11 @@ public function setName(string $tag): self
     public function toDomNode(): DOMElement
     {
         $element = $this->domElement->cloneNode(true);
-        $element->setAttribute('class', (string)$this->class);
+        if ($this->class->count()) {
+            $element->setAttribute('class', (string) $this->class);
+        }
         array_map(
-            static fn (Node $v) => $element->append(
-                $v->toDomNode()
-            ),
+            static fn (Node $v) => $element->append($v->toDomNode()),
             $this->values
         );
         return $element;