Question

56

Node js object exports

rated 0 times [ 59] [ 3] / answers: 1 / hits: 25325 / 8 Years ago, sat, july 9, 2016, 12:00:00

Got a pretty simple question to which I cant find an answer regarding exporting a object form a module in Node js, more specifically accessing the objects properties.

Here is my object I export:

exports.caravan = {

    month: july

};

And here is my main module:

var caravan = require(./caravan)



console.log(caravan.month);

console.log(caravan.caravan.month);

Why cant I access the properties directly with caravan.month but have to write caravan.caravan.month?

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jarettajb

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answered 8 Years ago campbelljonahb · Accepted Answer

Consider that with require, you gain access to the module.exports object of a module (which is aliased to exports, but there are some subtleties to using exports that make using module.exports a better choice).

Taking your code:

exports.caravan = { month: july };

Which is similar to this:

module.exports.caravan = { month: july };

Which is similar to this:

module.exports = {

  caravan : { month: july }

};

If we similarly translate the require, by substituting it with the contents of module.exports, your code becomes this:

var caravan = {

  caravan : { month: july }

};

Which explains why you need to use caravan.caravan.month.

If you want to remove the extra level of indirection, you can use this in your module:

module.exports = {

  month: july

};