Question

If I have a node module (I wrote) and I want to pass it a value, I could do this:

var someValue process.env.SomeKey || '';

var someModule = require('./someModule');

someModule.setOption({ 'SomeKey' : someValue });

but it feels like I am reinventing the wheel.

Is there a better way to do this or is it totally subjective?

Answer 1

In general, you simply export a function from the module:

module.exports = function(opts){
    return {
        // module instance
    };
}

then in the requiring page:

var mod = require('module')({ someOpt: 'val' });

But in reality, do it however you want. There’s no set-in-stone standard.