Block helper with ember-cli
问题 I'm trying to make a simple block helper but can't find any documentation for ember-cli on the subject UPDATED Here's the helper: import Ember from 'ember'; export default function uiInput(options) { return new Handlebars.SafeString( '<div class="ui input">' + options.fn(this) + '</div>'); } And in the template: {{#ui-input}} TEST {{/ui-input}} And the output should be: <div class="ui input"> TEST </div> But the output I'm getting is: TEST <div class="ui input"> undefined </div> What am I