Java and JavaScript nature simultaneously

Question

I have a larger maven multi-module project where multiple languages are involved. Now with Eclipse JDT and JSDT installed the code coloring works fine but code completion in JavaScript does not work very well which makes it hard to be productive. Eclipse does not seem to find JavaScript classes in my project so i am also not able to jump around JavaScript methods very easily. Mapping JavaScript classes seems also not possible since this is a Java project and i see no way to mix up project natures.

Is there a way to improve this behavior? Or are there any other JavaScript Plugins which are able to do so and work simultaneously with JDT?

JavaScript "smart" code completion is a fairly hard problem because the language is so dynamic. It's pretty hard for the editor environment to know what type of object a symbol might refer to because there are no type declarations. — Pointy
– Pointy, Commented Feb 11, 2011 at 14:35
Is my understading that IntellJ can even do it, in a mixed scenario ( eg. jsp / javascript ) They have a different ( better ) architecture. — OscarRyz
– OscarRyz, Commented Feb 11, 2011 at 16:35

Konstantin Komissarchik · Accepted Answer · 2011-02-12 06:44:23Z

8

You can definitely mix Java and JavaScript development in Eclipse. The Dynamic Web Project creates such a configuration by default.

To add JavaScript support to any Java project, do the following...

Project Properties -> Project Facets
Click on "Convert to faceted form" link
Check JavaScript and hit ok to close the dialog.
Make sure that you are in a perspective that has "Project Explorer" view as opposed to "Package Explorer", which is standard in Java perspective or open that view yourself. Unlike the Java-specific Package Explorer, the Project Explorer view accommodates different technology extensions, such as JavaScript.

Enjoy. Facets are somewhat like natures, but unlike natures the can be user-manipulated without hacking metadata files. New Eclipse tooling, like JSDT has been moving to providing facets to make enablement easier.

answered Feb 12, 2011 at 6:44

Konstantin Komissarchik

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4 Comments

deprecated Over a year ago

Maybe I'm missing something, but which such a config, editing JS is much slower and there are no completions at all, as opposed to what you'd get with a JS project.

jsh Over a year ago

Code completions work but agree they are not fast. However, this works; has my vote for the correct answer... +1

user1133275 Over a year ago

With 2019-12 it stops warning but fails to do anything.

user1133275 Over a year ago

RIP Facets in 2020.

Jim Garrison · Accepted Answer · 2012-02-01 18:19:31Z

0

Does it work for you if you open up your .project file and add a new <nature> into the <natures> element? I've done that to apply the java nature to non-java projects which had other natures.

edited Feb 1, 2012 at 18:19

Jim Garrison

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answered Feb 11, 2011 at 15:42

marc esher

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