1

controllers.application\.js

import Controller from '@ember/controller';
import { action } from '@ember/object';
import { tracked } from '@glimmer/tracking';
import { schedule } from '@ember/runloop';


export default class ApplicationController extends Controller {
  queryParams =  ['inputValue'];
  @tracked _inputValue = '';
	
	get inputValue() {
   	return this._inputValue; 
  }
	set inputValue(v) {
    console.log('setInputValue', v);
  	this._inputValue = v;
  }

	@action updateValue(event) {
  	this.inputValue = event.target.value + '1';
    const input = document.querySelector('input');
    console.log('beforeRender', input.value, input.getAttribute('value'));
    input.value = 'Foo';
  console.log('beforeRender - direct mutation', input.value, input.getAttribute('value'));

    schedule('afterRender', function() {
    		    console.log('aferRender', input.value, input.getAttribute('value'));
    });
  }
}

templates.application\.hbs

<input value={{this.inputValue}}  {{on 'input' this.updateValue}}/>

twiddle\.json

{
  "version": "0.17.1",
  "EmberENV": {
    "FEATURES": {},
    "_TEMPLATE_ONLY_GLIMMER_COMPONENTS": false,
    "_APPLICATION_TEMPLATE_WRAPPER": true,
    "_JQUERY_INTEGRATION": true
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.js",
    "ember": "3.18.1",
    "ember-template-compiler": "3.18.1",
    "ember-testing": "3.18.1"
  },
  "addons": {
    "@glimmer/component": "1.0.0"
  }
}