advanced – jsDay 2014 / The international Javascript Conference Tue, 13 May 2014 21:24:59 +0000 en-US hourly 1 https://wordpress.org/?v=4.7.2 Make your Backbone applications dance! /talk/make-your-backbone-applications-dance/ Tue, 08 Apr 2014 19:15:40 +0000 /?post_type=talk&p=322 Building Backbone applications quickly became a de-facto standard, though we can’t really define it as framework but rather just as foundation to create other frameworks.

If you like Backbone, you’ll fall in love with Marionette, the best application library to create large scale Javascript applications.

Nicholas will explain the framework, show examples and talk about some projects like cronycle.com that have been delivered to production using Marionette.

]]> Monads, Promises, and Reactive Metaprogramming /talk/monads-promises-and-reactive-metaprogramming/ Wed, 26 Mar 2014 08:56:07 +0000 /?post_type=talk&p=304 Prerequisites: having followed Federico Galassi’s or Sergi Mansilla’s talk (either is fine), or just having an idea on what rx.js does.

Javascript programmers are often struggling with asynchronous control flows. It does not matter if the sources of time warping are AJAX requests, the nodejs event loop, or a simple flow of events from the DOM: the result regularly converges to callback hell.

There are a lot of libraries and frameworks that try to address this problem now. If we don’t like them (and have time to waste) we can always wait for the ECMA committee and the browser vendors to do their job, adding proper async support to the language in the future.

We will see how monadic sequencing is at the root of most of those frameworks, and how a language with a programmable syntax can make your code cleaner now, without waiting for ES6 generators or ES7 async functions.

]]> Ember.js at Scale /talk/ember-js-at-scale/ Tue, 25 Mar 2014 07:03:07 +0000 /?post_type=talk&p=296 Zendesk was one of the first companies to use Ember in a large scale production application. With over 200,000,000 users making 70,000 requests per minute at daily peak times, we’re pushing the boundaries of single page application development performance. Once the API stabilized, we’ve embarked on the upgrade path to Ember 1.X and wanted to share our best practices/lessons learned from this journey.

In this session, we’ll cover performance optimizations and design patterns used to achieve scalability including:

* Deferred loading
* Boot optimizations
* Using null controller pattern for performance
* Proper usage of Ember primitives
* Custom mixins
* Working with high performance HTTP APIs
* Ember core framework customizations

We’ll also talk about the challenges faced when migrating from 0.9X to 1.X and the tools we’ve developed to ease the transition, improve code quality, and speed up development as we’ve grown our codebase.

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