Move select2 initialization

app/assets/javascripts/behaviors/index.js

@@ -12,6 +12,7 @@ import initPageShortcuts from './shortcuts';
 import './toggler_behavior';
 import './preview_markdown';
 import initCollapseSidebarOnWindowResize from './collapse_sidebar_on_window_resize';
+import initSelect2Dropdowns from './select2';
 
 installGlEmojiElement();
 initGFMInput();
@@ -19,3 +20,4 @@ initCopyAsGFM();
 initCopyToClipboard();
 initPageShortcuts();
 initCollapseSidebarOnWindowResize();
+initSelect2Dropdowns();

app/assets/javascripts/behaviors/select2.js

+import $ from 'jquery';
+
+export default () => {
+  if ($('select.select2').length) {
+    import(/* webpackChunkName: 'select2' */ 'select2/select2')
+      .then(() => {
+        $('select.select2').select2({
+          width: 'resolve',
+          minimumResultsForSearch: 10,
+          dropdownAutoWidth: true,
+        });
+
+        // Close select2 on escape
+        $('.js-select2').on('select2-close', () => {
+          setTimeout(() => {
+            $('.select2-container-active').removeClass('select2-container-active');
+            $(':focus').blur();
+          }, 1);
+        });
+      })
+      .catch(() => {});
+  }
+};

app/assets/javascripts/main.js

@@ -132,27 +132,6 @@ function deferredInitialisation() {
       .fadeOut();
   });
 
-  // Initialize select2 selects
-  if ($('select.select2').length) {
-    import(/* webpackChunkName: 'select2' */ 'select2/select2')
-      .then(() => {
-        $('select.select2').select2({
-          width: 'resolve',
-          minimumResultsForSearch: 10,
-          dropdownAutoWidth: true,
-        });
-
-        // Close select2 on escape
-        $('.js-select2').on('select2-close', () => {
-          setTimeout(() => {
-            $('.select2-container-active').removeClass('select2-container-active');
-            $(':focus').blur();
-          }, 1);
-        });
-      })
-      .catch(() => {});
-  }
-
   const glTooltipDelay = localStorage.getItem('gl-tooltip-delay');
   const delay = glTooltipDelay ? JSON.parse(glTooltipDelay) : 0;