'TypeError: is not a function' in Node.js

Question

I\'m getting the error while running the following code in Node.js

var assert = require(\'assert\');
var request = require(\'request\');
var index = require(\'./         


        

Answer 1

One silly mistake I did was while exporting was:

module.exports = [module_name_1, module_name_2, ..., module_name_n]

The right way is:

module.exports = {module_name_1, module_name_2, ..., module_name_n}

Answer 2

I'm fairly a beginner at Node JS so I managed to get this error by importing a function like so:

const { functionName } = require('./function')

instead of like so:

const functionName = require('./function')

Editing my post to add an explanation since I've learned more node since I wrote it. If a module exports an object containing multiple functions functions like so:

module.exports = { functionName, otherFunction }

Then the function has to be deconstructed out of the object during the import, as in the first code snippet. If the module exports a single function or a default function, like so:

 module.exports = functionName

Then tt must be imported directly, as in the second code snippet.