In array filter

README.md

@@ -92,6 +92,8 @@ Bunch of useful filters for AngularJS *(with no external dependencies!)*
   - [isNotEqualTo](#isnotequalto) `!=`
   - [isIdenticalTo](#isidenticalto) `===`
   - [isNotIdenticalTo](#isnotidenticalto) `!==`
+- [Array](#array)
+  - [inArray](#inarray)
 
 ## Get Started
 **(1)** You can install angular-filter using 4 different methods:
@@ -1356,7 +1358,33 @@ Converts kilobytes into formatted display<br/>
 <!--or: -->
 <div ng-show="{{ array | map | sum | !==: num }}"></div>
 ```
-## Changelog
+
+#Array
+Filters for arrays
+
+###inArray
+
+Filters the objects in an array by the values in another array
+```js
+function MainController ($scope) {
+  $scope.array = [ {a: 1}, {a: 2}, {a:1}, {a:3} ];
+  $scope.filterarray = [1, 3];
+  $scope.filterproperty = 'a';
+}
+```
+
+```html
+<li ng-repeat="elm in array | inArray:filterarry:filterproperty">
+  {{ elm.a }}
+</li>
+
+<!--
+result:
+1 1 3 
+-->
+```
+
+#Changelog
 ###0.5.7
 * fix issue #119
 

src/_filter/array/in-array.js

@@ -0,0 +1,21 @@
+/**
+ * @ngdoc filter
+ * @name inArray
+ * @kind function
+ *
+ * @description
+ * filter an array by a property in another array based on example http://jsbin.com/owIXEPE/2/edit?html,js,output
+ */
+angular.module('a8m.in-array', [])
+  .filter('inArray', ['$filter', function($filter) {
+    return function(list, arrayFilter, element){
+      if (arrayFilter) {
+        return $filter("filter")(list, function(listItem) {
+          return arrayFilter.indexOf(listItem[element]) != -1;
+        });
+      } else {
+        return list;
+      }
+    }
+  }]);
+

src/filters.js

@@ -73,5 +73,7 @@ angular.module('angular.filter', [
   'a8m.conditions',
   'a8m.is-null',
 
-  'a8m.filter-watcher'
+  'a8m.filter-watcher',
+
+  'a8m.in-array'
 ]);

test/spec/filter/array/in-array.js

@@ -0,0 +1,22 @@
+'use strict';
+
+describe('inArrayFilter', function() {
+  var filter;
+
+  beforeEach(module('a8m.in-array'));
+  beforeEach(inject(function($filter) {
+    filter = $filter('inArray');
+  }));
+
+  it('should filter by specific properties and avoid the rest', function() {
+    var srcarray =  [ {a: 1}, {a: 2}, {a:1}, {a:3} ];
+    var filterarray = [1, 3];
+    var filterproperty = 'a';
+    var result = [ {a: 1}, {a: 1}, {a: 3} ];
+
+    expect(filter(srcarray, filterarray, filterproperty)).toEqual(result);
+    expect(filter(srcarray, [5, 6], filterproperty).length).toEqual(0);
+    expect(filter(srcarray, undefined, undefined)).toEqual(srcarray);
+  });
+
+});