diff --git a/src/ol/reader/reader.js b/src/ol/reader/reader.js
new file mode 100644
index 0000000000..94c9b0cfa2
--- /dev/null
+++ b/src/ol/reader/reader.js
@@ -0,0 +1,17 @@
+goog.provide('ol.reader');
+
+
+/**
+ * @param {function(Object, function(this: S, ol.Feature): T, S=)} reader
+ *     Reader.
+ * @param {Object} object Object.
+ * @return {Array.<ol.Feature>}
+ * @template S,T
+ */
+ol.reader.readAllFromObject = function(reader, object) {
+  var features = [];
+  reader(object, function(feature) {
+    features.push(feature);
+  });
+  return features;
+};