demo/amd/rjs/output/unified/marionette-build.js
function(view, index) {
      if (!view.supportsRenderLifecycle) {
        Marionette.triggerMethodOn(view, 'before:render', view);
      }
      view.render();
      if (!view.supportsRenderLifecycle) {
        Marionette.triggerMethodOn(view, 'render', view);
      }
      this.attachHtml(this, view, index);
      return view;
    }
function(view, index) {
      if (!view.supportsRenderLifecycle) {
        Marionette.triggerMethodOn(view, 'before:render', view);
      }
      view.render();
      if (!view.supportsRenderLifecycle) {
        Marionette.triggerMethodOn(view, 'render', view);
      }
      this.attachHtml(this, view, index);
      return view;
    }
render the child view