ember-cli-is-component/addon/services/is-component.js

`{{is-component componentName}}` helper for your Ember apps

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

export default class IsComponentService extends Service {
  test(name) {
    name = (name || '').trim();

    if (!name) {
      return false;
    }

    const owner = getOwner(this);
    const lookup = owner.lookup('component-lookup:main');

    if (!lookup.componentFor) {
      return !!lookup.lookupFactory(name);
    }

    return !!(
      lookup.componentFor(name, owner) || lookup.layoutFor(name, owner)
    );
  }
}