diff --git a/src/Illuminate/View/ComponentAttributeBag.php b/src/Illuminate/View/ComponentAttributeBag.php
index 0a5111037eb5..7a2b9f959ea6 100644
--- a/src/Illuminate/View/ComponentAttributeBag.php
+++ b/src/Illuminate/View/ComponentAttributeBag.php
@@ -56,6 +56,17 @@ public function get($key, $default = null)
         return $this->attributes[$key] ?? value($default);
     }
 
+    /**
+     * Determine if a given attribute exists in the attribute array.
+     *
+     * @param  string  $key
+     * @return bool
+     */
+    public function has($key)
+    {
+        return array_key_exists($key, $this->attributes);
+    }
+
     /**
      * Only include the given attribute from the attribute array.
      *