fix(ui-grid-util): Reducing amount of digests triggered by ui-grid-util.

Author: Portugal, Marcelo

.travis.yml

@@ -30,8 +30,9 @@ env:
 branches:
   only:
     - master
-    - /^3\.0$/
-    - /^3\.x$/
+    - 4.0.3-release
+    - /^4\.0$/
+    - /^4\.x$/
     - /^release-.*$/
 
 before_install:

src/js/core/services/ui-grid-util.js

@@ -619,10 +619,7 @@ module.service('gridUtil', ['$log', '$window', '$document', '$http', '$templateC
     },
 
     isNullOrUndefined: function(obj) {
-      if (obj === undefined || obj === null) {
-        return true;
-      }
-      return false;
+      return (obj === undefined || obj === null);
     },
 
     endsWith: function(str, suffix) {
@@ -831,7 +828,7 @@ module.service('gridUtil', ['$log', '$window', '$document', '$http', '$templateC
         } else {
           s.logWarn('[focus.byId] Element id ' + elementID + ' was not found.');
         }
-      });
+      }, 0, false);
       this.queue.push(promise);
       return promise;
     },
@@ -856,7 +853,7 @@ module.service('gridUtil', ['$log', '$window', '$document', '$http', '$templateC
         if (element){
           element[0].focus();
         }
-      });
+      }, 0, false);
       this.queue.push(promise);
       return promise;
     },
@@ -886,8 +883,8 @@ module.service('gridUtil', ['$log', '$window', '$document', '$http', '$templateC
       };
       this._purgeQueue();
       if (aSync){ //Do this asynchronysly
-        var promise = $timeout(focusBySelector);
-        this.queue.push($timeout(focusBySelector));
+        var promise = $timeout(focusBySelector, 0, false);
+        this.queue.push(promise);
         return promise;
       } else {
         return focusBySelector();