I need to be able to Debug JS code run by Nashorn i.e:

ScriptEngineManager sem = new ScriptEngineManager();
ScriptEngine engine = sem.getEngineByName("nashorn");
engine.eval("load (\"src//sap/rdl/runjs/file.js\");");

Now I need to add a breakpoint in the JS file and be able to step through the lines programmatically (implement a debugger).

I know intelliJ and NetBeans implemented this so it should be possible, yet I cannot find any API in Nashorn that allows stepping and/or mapping of lines or variables.

Any advice/links would be most wele. Thanks in advance.

I need to be able to Debug JS code run by Nashorn i.e:

ScriptEngineManager sem = new ScriptEngineManager();
ScriptEngine engine = sem.getEngineByName("nashorn");
engine.eval("load (\"src//sap/rdl/runjs/file.js\");");

Now I need to add a breakpoint in the JS file and be able to step through the lines programmatically (implement a debugger).

I know intelliJ and NetBeans implemented this so it should be possible, yet I cannot find any API in Nashorn that allows stepping and/or mapping of lines or variables.

Any advice/links would be most wele. Thanks in advance.

• javascript
• debugging
• nashorn

Share Improve this question Follow edited Sep 9, 2014 at 10:14 Dmytro Plekhotkin 2,00322 gold badges2525 silver badges4747 bronze badges asked Sep 8, 2014 at 15:09 Sergey KupermanSergey Kuperman 5111 silver badge22 bronze badges 3

• Have the same problem - stackoverflow./questions/25791772/… . The ide stackoverflow answer I referenced there may be helpful to you. – Steve B. Commented Sep 11, 2014 at 15:47
• 1 @SteveB. your link is dead. – planty182 Commented Oct 7, 2015 at 12:44
• @planty182: web.archive/web/20150426130812/http://stackoverflow./… – Mathieu Larose Commented Feb 23, 2016 at 19:52

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1 Answer 1

Sorted by: Reset to default 5

You can debug your code in Intellij IDEA.

http://blog.jetbrains./idea/2014/03/debugger-for-jdk8s-nashorn-javascript-in-intellij-idea-13-1/

Also, you can try to use askari. It's a prototype that allow you to step through JavaScript code

https://github./wickund/nashornexamples/tree/master/askari

Cheers, Vik