SLIDE 1 www.faratasystems.com // follow me : twitter.com/gamussa
Nashorn - Native JavaScript in Java 8
Viktor Gamov Senior Software ENGINEER, Farata Systems QCon new york 2014Why you’re here
★you're excited about JDK8 features
Nashorn - Native JavaScript in Java 8 Viktor Gamov Senior Software - - PowerPoint PPT Presentation
Nashorn - Native JavaScript in Java 8 Viktor Gamov Senior Software - - PowerPoint PPT Presentation
www.faratasystems.com // follow me : twitter.com/gamussa Nashorn - Native JavaScript in Java 8 Viktor Gamov Senior Software ENGINEER, Farata Systems QCon new york 2014 Why youre here you're excited about JDK8 features Why youre here
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Why you’re here
★you're excited about JDK8 features ★JavaScript enthusiast ★Just need to kill time before Reception
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Who is talking?
★Software engineer and consultant
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WE BUILD APPLICATIONS. WE CREATE IT. YOU OWN IT.
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Who is talking?
★Software engineer and consultant ★co-author and JUG co-lead
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http://enterprisewebbook.com
Coming to the stores this summer (hopefully)
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Draft available for free
http://enterprisewebbook.com
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Who is talking?
★Software engineer and consultant ★co-author and JUG co-lead ★Guy between you and beer
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Polyglot?
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Everybody knows how to javascript
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JavaScript, wat?
www.destroyallsoftware.com/talks/wat SLIDE 15
print(3[3]);
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Number.prototype[3] = “qconnewqork"; print(3[3]);
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MANY good Parts
SLIDE 19 SHELL Scripting Extend app functionality on runtime
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JAVASCRIPT on JVM USE cASES
WEB-content generation4
provide extension points for application SLIDE 20
wait, javascript? it’s only for browsers
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JAVAScript is everywhere
★v8 and nodejs ★Rhino was here for years ★Here comes nashorn
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What is Nashorn?
SLIDE 23 Ultimate invokedynamic consumer 100% pure Java implementation 100% ECMAScript 5.1 compliant JavaScript Engine for JVM
What is Nashorn?
100% compiled to bytecode, no interpreter http://www.1001ausmalbilder.de/ausmalbilder/gross/ausmalbild-nashorn-7.jpg SLIDE 24
HOW To USE NASHORN?
★ The only API is JSR-223: javax.scripting.* ★ Java from JavaScript and vice versa ★ Create and manipulate Java/JavaScript objects ★ Extend Java classes ★ Implement Java interfaces
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Story one: Curious support engineer
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Story one: Curious support engineer
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Story two: Family BUSINESS
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Story two: Family BUSINESs
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Story Three: NASHORN for Browser
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NASHORN in «wild life»
★ vert.x nashorn module ★ Project Avatar (former node.jar)
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Demo
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Restrictions
★ There ARE No browser APIs: ★ HTML5 canvas ★ HTML5 audio ★ WebWorkers ★ WebSockets ★ WebGL
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SHOW ME THE CODE
https://github.com/gAmUssA/java-scripting-experiments SLIDE 34
Q&A
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