1 files changed, 6 insertions, 0 deletions
diff --git a/app/assets/javascripts/lib/utils/url_utility.js b/app/assets/javascripts/lib/utils/url_utility.js
index 533310cc87c..f84a20cf0fe 100644
--- a/app/assets/javascripts/lib/utils/url_utility.js
+++ b/app/assets/javascripts/lib/utils/url_utility.js
@@ -7,6 +7,8 @@
     if ((base = w.gl).utils == null) {
       base.utils = {};
     }
+    // Returns an array containing the value(s) of the
+    // of the key passed as an argument
     w.gl.utils.getParameterValues = function(sParam) {
       var i, sPageURL, sParameterName, sURLVariables, values;
       sPageURL = decodeURIComponent(window.location.search.substring(1));
@@ -23,6 +25,8 @@
       }
       return values;
     };
+    // @param {Object} params - url keys and value to merge
+    // @param {String} url
     w.gl.utils.mergeUrlParams = function(params, url) {
       var lastChar, newUrl, paramName, paramValue, pattern;
       newUrl = decodeURIComponent(url);
@@ -37,12 +41,14 @@
           newUrl = "" + newUrl + (newUrl.indexOf('?') > 0 ? '&' : '?') + paramName + "=" + paramValue;
         }
       }
+      // Remove a trailing ampersand
       lastChar = newUrl[newUrl.length - 1];
       if (lastChar === '&') {
         newUrl = newUrl.slice(0, -1);
       }
       return newUrl;
     };
+    // removes parameter query string from url. returns the modified url
     w.gl.utils.removeParamQueryString = function(url, param) {
       var urlVariables, variables;
       url = decodeURIComponent(url);