In node.JS how can I get the path of a module I have loaded via require that is *not* mine (i.e. in some node_module)

Question

I require a module that was installed via npm. I want to access a .js file subordinate to that module (so I can subclass a Constructor method in it). I can't (well, don't want to) modify the module's code, so don't have a place to extract its __dirname.

I am aware of the following question, but it is about getting the path of a module that one has code control over (hence, __dirname is the solution): In Node.js how can I tell the path of `this` module?

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Even better would be to get the module's loaded module info

Answer 1

If I correctly understand your question, you should use require.resolve():

Use the internal require() machinery to look up the location of a module, but rather than loading the module, just return the resolved filename.

Example: var pathToModule = require.resolve('module');