Deprecation Guide for Old extend prototypes

until: 4.0.0

id: ember-env.old-extend-prototypes

Accessing Ember.EXTEND_PROTOTYPES is deprecated.

If you need to access the consuming application's EXTEND_PROTOTYPES configuration in your addon, you can do the following:

my-addon/addon/services/my-awesome-service.js

import { getOwner } from "@ember/application";
import Service from "@ember/service";

export default class MyAwesomeService extends Service {
  myMethod() {
    const ENV = getOwner(this).resolveRegistration("config:environment");
    if (ENV.EmberENV.EXTEND_PROTOTYPES) {
      // ... do something
    }
  }
}

As a reminder, disabling prototype extensions in an Ember.js application is done by setting EmberENV.EXTEND_PROTOTYPES in config/environment.js.

config/environment.js

ENV = {
  EmberENV: {
    EXTEND_PROTOTYPES: false
  }
}