Error 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('./index');
it('verify javascript function', function(done) {
    var v2 = index.AddNumbers(5, 6);
    assert.equal(11, v2);
    done();
});

The index.js file contain the following code:

function AddNumbers(a,b){
    return a+b;
}

What am I doing wrong?

Answer 1

Hello @kartik,

Because of circular dependency, check if you have 2 classes that are requiring each other, remove one of them from requiring the other and the issue should be solved.

Hope it helps!!

To know more about it, enroll in Node.js training today.

Thank You!!

Answer 2

You are exporting

module.exports.redir = redir;

That means that your import

const redir = require('./index');

is the exported object. redir happens to be one of its keys. To use the function, use

const redir = require('./index').redir;

or destructure directly into redir

const { redir } = require('./index');