react-native : How to define a javascript class

Question

I am using react native. I need to define a class:

class myClass {
  email: string;
  name: string;
  constructor() {
      setUser(fbid: string, token: string): boolean {

I am trying to define it in its own file myClass.js and when I include it in my index.ios.js , I get this error:

Can't find variable: myClass

Can you please point me to any documentation on how to define non react classes and use them in react native ? Thank you for reading.

i'm not familiar with reactjs but if you're looking to create a class in JS this should help, particularly the Custom objects section : developer.mozilla.org/en-US/docs/Web/JavaScript/… — Dany Khalife
– Dany Khalife, Commented Mar 4, 2016 at 19:59
ReactJS is a JavaScript library. React Native is a mobile framework, don't mistake them for the same thing. — ArthurG
– ArthurG, Commented Oct 10, 2017 at 1:03

tt9 · Accepted Answer · 2016-03-04 19:53:14Z

20

You need to export classes you define.

example:

//myClass.js
export default class myClass {
  email: string;
  name: string;
  constructor() {
      //...
  }
}

//index.ios.js
import myClass from './path/to/myClass.js'

Note the "export default", so you can define any class including non-react classes in a React Native (or Javascript es6) project and export it, making it available for import and use by other classes.

See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/import

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/export

for more details.

answered Mar 4, 2016 at 19:53

tt9

6,1297 gold badges45 silver badges71 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

react-native : How to define a javascript class

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related