Able to bind to scope using different keys.

angular-local-storage.js

@@ -359,8 +359,12 @@ angularLocalStorage.provider('localStorageService', function() {
       return storageType;
     };
 
-    var bindToScope = function(scope, key, def) {
+    var bindToScope = function(scope, scopeKey, def, lsKey) {
-      var value = getFromLocalStorage(key);
+      if (!lsKey) {
+        lsKey = scopeKey;
+      }
+
+      var value = getFromLocalStorage(lsKey);
 
       if (value === null && angular.isDefined(def)) {
         value = def;
@@ -368,10 +372,10 @@ angularLocalStorage.provider('localStorageService', function() {
         value = angular.extend(def, value);
       }
 
-      $parse(key).assign(scope, value);
+      $parse(scopeKey).assign(scope, value);
 
-      scope.$watchCollection(key, function(newVal) {
+      scope.$watchCollection(scopeKey, function(newVal) {
-        addToLocalStorage(key, newVal);
+        addToLocalStorage(lsKey, newVal);
       });
     };
 

test/spec/localStorageSpec.js

@@ -249,6 +249,19 @@ describe('localStorageService', function() {
     expect($rootScope.obj.property).toEqual(localStorageService.get('obj.property'));
   }));
 
+  it('should be able to bind to scope using different key', inject(function($rootScope, localStorageService) {
+
+    localStorageService.set('lsProperty', 'oldValue');
+    localStorageService.bind($rootScope, 'property', undefined, 'lsProperty');
+
+    expect($rootScope.property).toEqual(localStorageService.get('lsProperty'));
+
+    $rootScope.property = 'newValue';
+    $rootScope.$digest();
+
+    expect($rootScope.property).toEqual(localStorageService.get('lsProperty'));
+  }));
+
   //sessionStorage
   describe('SessionStorage', function() {