Test filtering an object.

2 files changed, 16 insertions, 4 deletions

diff --git a/lib/internal/filter.js b/lib/internal/filter.js
index 1158d6d..1a097f9 100644
--- a/lib/internal/filter.js
+++ b/lib/internal/filter.js
@@ -1,19 +1,19 @@
-import filter from 'lodash/_arrayFilter';
+import filter from 'lodash/filter';
 import noop from 'lodash/noop';
 import once from './once';
 
 export default function _filter(eachfn, arr, iteratee, callback) {
     callback = once(callback || noop);
-    var truthy = [];
+    var truthValues = new Array(arr.length);
     eachfn(arr, function (x, index, callback) {
         iteratee(x, function (err, v) {
-            truthy[index] = !!v;
+            truthValues[index] = !!v;
             callback(err);
         });
     }, function (err) {
         if (err) return callback(err);
         callback(null, filter(arr, function (_, index) {
-            return truthy[index];
+            return truthValues[index];
         }));
     });
 }
diff --git a/mocha_test/filter.js b/mocha_test/filter.js
index 8b4b268..05d9d99 100644
--- a/mocha_test/filter.js
+++ b/mocha_test/filter.js
@@ -41,6 +41,18 @@ describe("filter", function () {
         });
     });
 
+    it('filter collection', function(done){
+        var a = {a: 3, b: 1, c: 2};
+        async.filter(a, function(x, callback){
+            callback(null, x % 2);
+        }, function(err, results){
+            expect(err).to.equal(null);
+            expect(results).to.eql([3,1]);
+            expect(a).to.eql({a: 3, b: 1, c: 2});
+            done();
+        });
+    });
+
     it('filter error', function(done){
         async.filter([3,1,2], function(x, callback){
             callback('error');