nashorn/samples/gaussian_random_bind.js
author iveresov
Thu, 17 Sep 2015 13:42:50 -0700
changeset 33068 baa856b751b3
parent 26067 b32ccc3a76c9
permissions -rw-r--r--
Merge

/*
 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
 *
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 * 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
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 */

// print 100 Guassian distributed numbers

var Random = Java.type("java.util.Random");
var DoubleStream = Java.type("java.util.stream.DoubleStream");

// function as lambda double generator. "print" passed as
// double consumer lambda to 'forEach' method.
// Function.prototype.bind used to attach 'state' for the
// generator function.

DoubleStream
    .generate(
         function(r) {
             return r.nextGaussian()
         }.bind(this, new Random()))
    .limit(100)
    .forEach(print);