move param helper to common utils

app/assets/javascripts/lib/utils/common_utils.js → app/assets/javascripts/lib/utils/common_utils.js.es6

@@ -139,6 +139,21 @@
       }, 200);
     };
 
+    /**
+      this will take in the `name` of the param you want to parse in the url
+      if the name does not exist this function will return `null`
+      otherwise it will return the value of the param key provided
+    */
+    w.gl.utils.getParameterByName = (name) => {
+      const url = window.location.href;
+      name = name.replace(/[[\]]/g, '\\$&');
+      const regex = new RegExp(`[?&]${name}(=([^&#]*)|&|#|$)`);
+      const results = regex.exec(url);
+      if (!results) return null;
+      if (!results[2]) return '';
+      return decodeURIComponent(results[2].replace(/\+/g, ' '));
+    };
+
   })(window);
 
 }).call(this);

app/assets/javascripts/lib/utils/param_helper.js.es6

-/* eslint-disable no-param-reassign */
-
-((gl) => {
-  gl.utils = gl.utils || (gl.utils = {});
-
-  /**
-    this will take in the `name` of the param you want to parse in the url
-    if the name does not exist this function will return `null`
-    otherwise it will return the value of the param key provided
-  */
-
-  gl.utils.getParameterByName = (name) => {
-    const url = window.location.href;
-    name = name.replace(/[[\]]/g, '\\$&');
-    const regex = new RegExp(`[?&]${name}(=([^&#]*)|&|#|$)`);
-    const results = regex.exec(url);
-    if (!results) return null;
-    if (!results[2]) return '';
-    return decodeURIComponent(results[2].replace(/\+/g, ' '));
-  };
-})(window.gl || (window.gl = {}));

app/assets/javascripts/vue_pagination/index.js.es6

 /* global Vue, gl */
 /* eslint-disable no-param-reassign, no-plusplus */
 
-/*= require lib/utils/param_helper.js.es6 */
-
 ((gl) => {
   const PAGINATION_UI_BUTTON_LIMIT = 4;
   const UI_LIMIT = 6;

spec/javascripts/vue_pagination/pagination_spec.js.es6

 //= require vue
+//= require lib/utils/common_utils
 //= require vue_pagination/index
 
 describe('Pagination component', () => {