demo/amd/rjs/output/unified/marionette-build.js
function(collectionView, childView, index) {
      if (collectionView.isBuffering) {
        // buffering happens on reset events and initial renders
        // in order to reduce the number of inserts into the
        // document, which are expensive.
        collectionView._bufferedChildren.splice(index, 0, childView);
      } else {
        // If we've already rendered the main collection, append
        // the new child into the correct order if we need to. Otherwise
        // append to the end.
        if (!collectionView._insertBefore(childView, index)) {
          collectionView._insertAfter(childView);
        }
      }
    }
function(collectionView, childView, index) {
      if (collectionView.isBuffering) {
        // buffering happens on reset events and initial renders
        // in order to reduce the number of inserts into the
        // document, which are expensive.
        collectionView._bufferedChildren.splice(index, 0, childView);
      } else {
        // If we've already rendered the main collection, append
        // the new child into the correct order if we need to. Otherwise
        // append to the end.
        if (!collectionView._insertBefore(childView, index)) {
          collectionView._insertAfter(childView);
        }
      }
    }
Append the HTML to the collection's `el`. Override this method to do something other than `.append`.