Java Collections and lambda usage example

Nodeclipse · Apr 16, 2014 · 2327f74 · 2327f74
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diff --git a/org.nodeclipse.help/contents/.nashorn.md.html b/org.nodeclipse.help/contents/.nashorn.md.html
@@ -449,8 +449,8 @@
 
 </head>
 <body class="markdown-body">
-<h1> <a name="nashorn" class="anchor" href="..md.html#nashorn"><span class="octicon octicon-link"></span></a>Nashorn</h1> 
-<h2> <a name="links" class="anchor" href="..md.html#links"><span class="octicon octicon-link"></span></a>Links</h2> 
+<h1> <a name="user-content-nashorn" class="anchor" href="..md.html#nashorn"><span class="octicon octicon-link"></span></a>Nashorn</h1> 
+<h2> <a name="user-content-links" class="anchor" href="..md.html#links"><span class="octicon octicon-link"></span></a>Links</h2> 
 <p>Main blog <a href="https://blogs.oracle.com/nashorn/">https://blogs.oracle.com/nashorn/</a> by Jim Laskey</p> 
 <p>Sources: <a href="http://hg.openjdk.java.net/nashorn/jdk8/nashorn">http://hg.openjdk.java.net/nashorn/jdk8/nashorn</a></p> 
 <ul> 
@@ -464,9 +464,9 @@ <h2> <a name="links" class="anchor" href="..md.html#links"><span class="octicon
 </ul>
 <p>Old and excited blog post: <a href="http://kaeff.net/posts/why-ruby-and-nodejs-folks-should-care-about-project-nashorn.html">http://kaeff.net/posts/why-ruby-and-nodejs-folks-should-care-about-project-nashorn.html</a></p> 
 <p>If you use JavaFX inside JavaScript, you should use SDK, not just JRE.</p> 
-<h2> <a name="java-8-script-utils" class="anchor" href="..md.html#java-8-script-utils"><span class="octicon octicon-link"></span></a>Java 8 script utils</h2> 
+<h2> <a name="user-content-java-8-script-utils" class="anchor" href="..md.html#java-8-script-utils"><span class="octicon octicon-link"></span></a>Java 8 script utils</h2> 
 <p>Java 8 goes with 2 utils: <code>jjs</code> for running JavaScript on Nashorn engine and <code>jrunscript</code> for running any script engine</p> 
-<h3> <a name="jjs-command-line-util" class="anchor" href="..md.html#jjs-command-line-util"><span class="octicon octicon-link"></span></a><code>jjs</code> command line util</h3> 
+<h3> <a name="user-content-jjs-command-line-util" class="anchor" href="..md.html#jjs-command-line-util"><span class="octicon octicon-link"></span></a><code>jjs</code> command line util</h3> 
 <pre><code>
 C:\Program Files\Java\jdk1.8.0\bin&gt;jjs.exe -v
 
@@ -504,7 +504,7 @@ <h3> <a name="jjs-command-line-util" class="anchor" href="..md.html#jjs-command-
         -v, -version (Print version info of Nashorn.)
                 param: [true|false]   default: false
 </code></pre> 
-<h3> <a name="jrunscript-command-line-util" class="anchor" href="..md.html#jrunscript-command-line-util"><span class="octicon octicon-link"></span></a><code>jrunscript</code> command line util</h3> 
+<h3> <a name="user-content-jrunscript-command-line-util" class="anchor" href="..md.html#jrunscript-command-line-util"><span class="octicon octicon-link"></span></a><code>jrunscript</code> command line util</h3> 
 <pre><code>
 C:\Program Files\Java\jdk1.8.0\bin&gt;jrunscript.exe  -h
 Usage: jrunscript [options] [arguments...]

diff --git a/org.nodeclipse.help/contents/nashorn.md b/org.nodeclipse.help/contents/nashorn.md
@@ -102,6 +102,83 @@ C:\Program Files\Java\jdk1.8.0\bin>jrunscript.exe  -q
 Language ECMAScript ECMA - 262 Edition 5.1 implemention "Oracle Nashorn" 1.8.0
 </code></pre>
 
+### Examples
+
+#### Using threads in JavaScript
+
+From <http://www.infoq.com/articles/nashorn>
+
+```javascript
+// this is how we get access to Java class Thread 
+var Thread = Java.type("java.lang.Thread"); 
+
+// subclass with our run method 
+var MyThread = Java.extend(Thread, { 
+    run: function() { 
+        print("Run in separate thread"); 
+    } 
+}); 
+var th = new MyThread(); 
+th.start(); 
+th.join(); 
+```
+
+More
+
+```javascript
+var r = new java.lang.Runnable({
+    run: function() {
+        print("running...\n");
+    }
+});
+```
+
+#### Lambdas
+
+Compare
+
+```javascript
+var jsArray = [4,1,3,2]; 
+jsArray.forEach(function(el) { print(el) } ); 
+```
+
+and the same with Java Collections and lambda usage:
+
+```javascript
+var jsArray = [1,2,3,4];
+var list = java.util.Arrays.asList(jsArray);
+list.forEach(function(el) { print(el) } ); 
+```
+
+#### Scripting
+
+From <https://blogs.oracle.com/nashorn/entry/csi_nashorn_shell_scripting_in>
+
+```javascript
+#!/usr/bin/jjs
+# This script hunts down the change set associated with a
+# source file and a line number.
+#
+
+// Report proper command usage.
+function usage() {
+    error(<<EOS);
+usage: suspect javaFileName lineNumber
+    javaFileName - name of file in local mercurial repository
+    lineNumber   - file line number
+EOS
+}
+
+// Provide meaningful names for arguments.
+var fileName   = $ARG[0];
+var lineNumber = $ARG[1];
+
+// If arguments are missing, report proper usage.
+if (!fileName || !lineNumber) {
+    usage();
+}
+```
+
 ### Contribute
 
 <a href="https://github.com/Nodeclipse/nodeclipse-1/blob/master/org.nodeclipse.help/contents/nashorn.md" target="_blank">Edit online on GitHub</a>