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    <p>I'm not exactly sure what you're asking here, but if you need to pass values into your modules you should make sure to export functions that accept parameters. When they say that a module is cached, it means that your module is only initialized once. Think of your module as an object:</p> <pre><code>var a = 1; var b = 2; console.log("init!"); module.exports.test = function(){ console.log("this is a function!"); } </code></pre> <p>Here, a, b, and the first log will run only once. This is when the module is requested and is then cached. When you do a </p> <pre><code> var example = require("module") </code></pre> <p>If it was never created it'll initialize a, b, and do the log message. If it was already created it will just give you a reference to what you exported. Each time you call:</p> <pre><code> example.test() </code></pre> <p>It will output: <code>this is a function!</code></p> <p>But you will NOT get the a, b, and the first log run again.</p> <p>Think of all statements not exported as private static variables of that object. </p> <p>Here is another fully working example:</p> <p><code>app.js</code></p> <pre><code>var s = require("./sample"); var y = require("./sample"); s.test(); y.test(); s.test(); console.log("finished"); </code></pre> <p><code>sample.js</code></p> <pre><code>var a = 1; var b = 2; console.log("init!"); function test() { console.log("here! " + a); a++; } exports.test = test; </code></pre> <p>This all outputs:</p> <pre><code>init! here! 1 here! 2 here! 3 finished </code></pre> <p>Does this help at all?</p>
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    1. PONode.js pass variable to module vs pass variable to every module function
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    1. COI'm asking about the difference between passing "static" vars into module and passing them into each function. The reason I'm asking about it is that with parametrized module.exports on require('./submodule') it calls module.export's function multiple times (each time on require).
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    2. CORight, thats what I'm saying. The export is just a function reference, but it can close over "statics" that are declared outside of exported values.
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    3. COOk. So can you give short answer (your own opinion): Is there any difference between this cases (yes/no), which one do you prefer to use? Thanks.
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