Splat Order Demo

components.splat-after\.js

import Component from '@glimmer/component';

export default class extends Component {
}

components.splat-before\.js

import Component from '@glimmer/component';

export default class extends Component {
}

controllers.application\.js

import Controller from '@ember/controller';

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

styles.app\.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}
[aria-label] {
  margin: 1rem;
}
[aria-label]:after {
  display: block;
  color: fuchsia;
  padding-left: 2em;
  content: attr(aria-label);
}

templates.application\.hbs

<SplatBefore aria-label="splats are cool">
  I'm using "SplatBefore" and setting aria-label="splats are cool"
</SplatBefore>
<SplatAfter aria-label="splats are rad">
  I'm using "SplatAfter" and setting aria-label="splats are rad"
</SplatAfter>

templates.components.splat-after\.hbs

<button aria-label="splats after" ...attributes>
{{yield}}
</button>

templates.components.splat-before\.hbs

<div ...attributes aria-label="splats before">
{{yield}}
</div>

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"
  }
}