component arg types

components.my-component\.js

//import { tracked } from '@glimmer/tracking';
import Component from '@glimmer/component';

export default class extends Component {
  get result() {
    return typeof this.args.arg1;
  }
}

controllers.application\.js

import Controller from '@ember/controller';

export default class ApplicationController extends Controller {
  appName = 'Ember Twiddle';
}

templates.application\.hbs

<h1>Welcome to {{this.appName}}</h1>
<br>
\{{1}}: <MyComponent @arg1={{1}}/><br>
\{{100}}: <MyComponent @arg1={{100}}/><br>
"100": <MyComponent @arg1="100"/><br>
100: <MyComponent @arg1=100/><br>
<br>
\{{true}}: <MyComponent @arg1={{true}}/><br>
\{{false}}:<MyComponent @arg1={{false}}/><br>
"true": <MyComponent @arg1="true"/><br>
true: <MyComponent @arg1=true/><br>
<br>
{{!-- breaks at compile-time
\{{[]}}: <MyComponent @arg1={{[]}}/><br>
\{{{}}}: <MyComponent @arg1={{{}}}/><br>
--}}
\{{hash}}: <MyComponent @arg1={{hash}}/><br>
\{{array}}: <MyComponent @arg1={{array}}/><br>
[]: <MyComponent @arg1=[]/><br>
<br>
{{outlet}}

templates.components.my-component\.hbs

{{this.result}}

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"
  }
}