I did try your example, and yes track by $index helps but only on updating the DOm not initial rendering. Post got updated
170 karma · joined November 27, 2009
Mobile Webapps should provide feedback to the user as fast as possible on input. With long lists that has been quite problematic so far, and I have been looking for solutions to make the DOM update faster. ReactJs is a great help here.
btw, I am the author of this article.
There are cities beiing referred to as Big Apple...