--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/samples/jsobject_mapreduce.js	Wed May 07 20:20:58 2014 +0530
@@ -0,0 +1,62 @@
+#// Usage: jjs -scripting -cp . jsobject_mapreduce.js
+
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 
+ *   - Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 
+ *   - Neither the name of Oracle nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// Many Array.prototype functions such as map, 
+// filter, reduce, reduceRight, every, some are generic.
+// These functions accept ECMAScript array as well as 
+// many array-like objects including JSObjects.
+// See also http://en.wikipedia.org/wiki/MapReduce
+
+`javac BufferArray.java`;
+
+var BufferArray = Java.type("BufferArray");
+var buf = new BufferArray(10);
+
+var map = Array.prototype.map;
+var filter = Array.prototype.filter;
+var reduce = Array.prototype.reduce;
+
+// make random list of numbers
+for (var i = 0; i < 10; i++)
+    buf[i] = Math.random();
+
+var forEach = Array.prototype.forEach;
+// print numbers in the list
+forEach.call(buf, function(x) print(x));
+
+// print sum of squares of the random numbers
+print("Square sum:",
+    reduce.call(
+        map.call(buf, function(x) x*x), 
+        function(x, y) x + y)
+);