CODEWITHSUNDEEP
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Christian Benseler
Christian Benseler

Reputation: 8065

Ionic 2: use NavController

I'm trying to import NavController in a constructor from a class, following the docs/examples:

import {NavController} from "ionic-framework/ionic";
//some other code
export class SignUp {
    constructor(nav: NavController) {
        this.nav = nav;
    }
}

and the console outputs: Uncaught Error: Cannot find module "./pages/signup/signup"

if I remove the constructor, there's no error.

It seems there's some sort of error in the construct() but I can't find out, I have seen differents examples and the piece of code I wrote is the same from them. Any idea?

EDIT: on the CLI I saw this error:

ERROR in ./app/pages/signup/signup.js
Module build failed: SyntaxError: app/pages/signup/signup.js: Unexpected token (10:16)
   8 | export class SignUp {
   9 | 
> 10 |  constructor(nav: NavController) {
     |                 ^
  11 |      this.nav = NavController;
  12 |      console.log(this.nav)
  13 |  }

Upvotes: 1

Views: 1342

Answers (2)

yadu
yadu

Reputation: 46

Try this:

    export class Signup {
        static get parameters() {
            return [[NavController]];
        }
        constructor(nav) {
            this.nav = nav;
            ... 
        }
    }

Upvotes: 2

Denko Mancheski
Denko Mancheski

Reputation: 2719

Your syntax is wrong. You should have this.nav = nav in the constructor, or just put public before nav in the parameters like:

constructor(public nav: NavController) {

    }

and you wont ne

Upvotes: 3

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