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+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule distinctArray
+ * @flow
+ */
+
+var Set = require('./Set');
+
+/**
+ * Returns the distinct elements of an iterable. The result is an array whose
+ * elements are ordered by first occurrence.
+ */
+function distinctArray<T>(xs: Iterable<T>): Array<T> {
+ return Array.from(new Set(xs).values());
+}
+
+module.exports = distinctArray; \ No newline at end of file