diff --git a/index.js b/index.js
index e9cd82f..34192e9 100644
--- a/index.js
+++ b/index.js
@@ -133,9 +133,9 @@ const init = async (items = [], options = {}, index = 0) => {
             },
             set init(val) {
                 this.state = val;
-                this.callback.forEach((i) => {
+                for (const i of this.callback) {
                     i(val);
-                });
+                }
             },
             callback: [],
             addListener(callback) {
@@ -159,8 +159,8 @@ const init = async (items = [], options = {}, index = 0) => {
                     <div class="advdominion-lg__wrapper swiper-wrapper">
                         ${items.join('')}
                     </div>
-                    ${options.pagination ? options.pagination : ''}
-                    ${options.navigation ? options.navigation : ''}
+                    ${options.pagination || ''}
+                    ${options.navigation || ''}
                 </div>
             </div>
         `