attributeBindings hidden

components.hidden-attribute.js

import Ember from 'ember';

export default Ember.Component.extend({
  attributeBindings: ['hidden'],
  hidden: true
});

components.remove-from-dom.js

import Ember from 'ember';

export default Ember.Component.extend({
  tagName: ''
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  shouldHide: true,
  shouldRemove: true
});

helpers.not.js

import Ember from 'ember';

export function not(params/*, hash*/) {
  return !params[0];
}

export default Ember.Helper.helper(not);

templates.application.hbs

<h1>Toggling Visibility Using the Component's API</h1>
<br>
<br>
<table>
  <tr>
    <th>
      Keeps element on page
    </th>
    <th>
      Removes/adds element to page
    </th>
  </tr>
  
  <tr>
    <td>
      <button {{action (mut this.shouldHide) (not shouldHide)}}>Toggle using hidden attribute</button>
    </td>
    <td>
      <button {{action (mut this.shouldRemove) (not shouldRemove)}}>Toggle by removing/adding dom element</button>
    </td>
  </tr>

  <tr>
    <td>
      {{#hidden-attribute hidden=this.shouldHide}}
        Hi! I was hidden!
      {{/hidden-attribute}}
    </td>
    <td>
      {{#remove-from-dom hidden=this.shouldRemove}}
        Hi! I was removed!
      {{/remove-from-dom}}
    </td>
  </tr>
</table>
<br>
<br>

templates.components.hidden-attribute.hbs

{{yield}}

templates.components.remove-from-dom.hbs

{{#if (not this.hidden)}}
  {{yield}}
{{/if}}

twiddle.json

{
  "version": "0.15.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js",
    "ember": "3.4.3",
    "ember-template-compiler": "3.4.3",
    "ember-testing": "3.4.3"
  },
  "addons": {
    "ember-data": "3.4.2"
  }
}