CODEWITHSUNDEEP
javascriptnode.js
user2520217
user2520217

Reputation: 309

Nodejs Function is not a function?

I am coding a small chatbot with facebook messenger.

I created 2 main js file: facebook.js and control.js

facebook.js will perform send message/ receive message. control.js will perform some minor logic/ application function.

Let me give a example code for these two js.

In facebook.js

function sendMessage(){
  ///configuring and json format
  //send to facebook server(webhook) by using Bluebird
  return new bluebird(function(resolve, reject) {
    resolve(data);
  }
}

// exports sendMessage()
module.exports = {
sendMessage:sendMessage
}

control.js

var fb = require('./facebook');




function something(){
  fb.sendMessage();
}

When i trigger the somthing(). The console show the error like this

System Error ### : uncaughtException: fb.sendMessage is not a function TypeError: fb.sendMessage is not a function

I log the 'fb': it print {} in console. Anyone facing this error? am i code wrong way to exports the function?

Upvotes: 1

Views: 1105

Answers (1)

user2520217
user2520217

Reputation: 309

Because when i print out the "fb" .It shows empty {}

I found that is problem of circular dependency! Which means you have 2 module(Ma and Mb). Module B required by Module A. Also, Module A required by Module B

More info: enter link description here

Upvotes: 1

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