Include files in node.js directly

Question

I know this questions sounds like a duplicate of this question but it isn't. This questions shows how to include a file that then stores all of its members in an own namespace. But is there a way to include the file, so that the members are in the default namespace?

So I want something like this,

include("abc.js");

testFunc(1, 2, 3);

where testFunc is declared in abc.js

Answer 1

There is a common namespace in node.js that all loaded files has access to, global

In abc.js :

global.testFunc = () => 'bar';

so below will work

require('./abc');

testFunc(1, 2, 3);

However this is not really advised to be used for performance purposes, except for config values for example

Answer 2

First nodejs does not know include , you should use require or import

If you have a module ( testModule ):

module.exports = {
    testFunc: (...args) => {/* ... */}
}

You should be able to import testFunc into the current 'namespace' using

const {testFunc} = require("./testModule.js");