问题
I have Eclipse with PyDev and JavaScript Development Tools (JSDT). I'm using this environment to develop web applications.
Python, HTML, and CSS editors all work fine: highlighting and auto completion works. JavaScript highlighting works too, but JavaScript auto completion does not work.
Switching to the JavaScript perspective doesn't help.
However, if I create a separate JavaScript Project (rather than adding JavaScript files into my PyDev project), JavaScript auto completion seems to work properly.
Additional Details
When I create a JavaScript Project, Eclipse adds certain JavaScript Resources to the project by default. For example, ECMAScript Built-In Library and ECMA 3 Browser Support Library. These are visible in the Script Explorer window, as well as under Project Properties -> JavaScript -> Libraries.
The problem is, I don't have a Project Properties -> JavaScript option when in a PyDev Project.
Question: What do I need to do (e.g. config wise) to get JavaScript auto completion in Eclipse, when NOT in a JavaScript Project (i.e. when in a PyDev Project)?
Is it possible to add a JavaScript perspective/(I'm not sure what call this exactly...) to a PyDev Project in Eclipse?
I'm very new (2 days) to JavaScript development, so preemptive apologies if the problem/solution is trivial!
回答1:
You should create a javascript project first and then make it a PyDev project (right click it > PyDev > Set as PyDev project).
Also, if you're starting out, you may want to check Aptana Studio 3: http://aptana.org/ (it's set of Eclipse plugins that has the whole toolchain for web development, with editors for javascript, html, css as well as PyDev preinstalled) -- note that you can check it by just downloading the standalone version and pointing to an existing workspace.
回答2:
To add JavaScript to an existing project convert it to a 'Faceted Project' type and then add the JavaScript facet; to do so go 'Project' > 'Properties'.
回答3:
To add JavaScript to an existing PyDev project (Daniel Sokolowski's answer doesn't work for PyDev in Eclipse Neon. Facets are only available for J2EE projects -- See eclipse's documentation on project facets):
- Close out eclipse.
- Browse to your project folder and open the .project file with a text editor.
- Add the following to the
<natures>tag next to the pydev natures:<nature>org.eclipse.wst.jsdt.core.jsNature</nature> - Save and reopen your project.
I could then go into Project > Properties > JavaScript > Include Path and add libraries to use for auto-completion. Both auto-completion and the JavaScript Editor save actions worked from the PyDev perspective.
This was in Eclipse Neon.
来源：https://stackoverflow.com/questions/10863264/no-javascript-auto-complete-in-pydev-eclipse-project