JSFoo 2013

All about being creative with JavaScript

(Skip ahead to session proposals)

About JSFoo

JSFoo is India’s only national JavaScript conference. The first season of JSFoo featured editions in Bangalore, Pune and Chennai between Oct 2011 and Feb 2012. The second edition in Bangalore in Oct 2012 was based on the theme “JavaScript Everywhere” – featuring JavaScript on web servers, embedded in robots, as a cross-platform language for mobile, and in its original home, the browser.

##JSFoo 2013
The theme for JSFoo 2013 is original creations with JavaScript. Showcase innovative work done with JavaScript – if you have created something at work or outside your work commitments, with or without a business model in sight, something you’ve done for the love of seeing it come to life in front of your eyes, JSFoo is the place to talk about it!

Talks which demonstrate innovation at either a technical or “best practice” level will be given preference. Your creation does not necessarily have to be in production, but we will insist on it being something more significant than a cool ten-line function you came up with (unless that function allowed you to control sharks fitted with lasers or something).

We are also accepting high quality talk and workshop proposals on JS frameworks, libraries and tools. These proposals have to provide clear objectives and take-aways for practising JavaScript developers.

JSFoo 2013 is a single-track event. We invite proposals for:

  • full-length 40-minute proposal
  • a crisp 15-minute presentation
  • sponsored sessions, 40 minute duration
  • flash talks of 5 minutes duration. Submissions for flash talks will be opened one week before the event
  • Hands-on sessions ranging from two to six hours on JS libraries, frameworks and tools. These proposals will be categorized as workshops

Commitment to open source

HasGeek believes in open source as the binding force of our community. If you are describing a piece of technology, we’d like it to be available under a permissive open source license.

If your software is commercially licensed or available under a combination of commercial and restrictive open source licenses (such as the various forms of the GPL), please consider picking up a sponsorship. We recognize that there are valid reasons for commercial licensing, but ask that you support us in return for giving you an audience. Your session will be marked on the schedule as a sponsored session.

Speaking submissions

You can submit a proposal to speak at JSFoo 2013 via the submission funnel below. Please describe your proposal in as much detail as possible. Detail is important if you’d like to be voted up into the schedule. In particular, we want to hear why you are the best person to be delivering a talk on your proposed topic. Provide links to previous talks and presentations you’ve done. This will help attendees and the programme committee in evaluating your proposal.
Making a funnel submission does not guarantee final selection.

##Selection Process
Voting is open to attendees who have purchased event tickets. If there is a proposal you find notable, please vote for it and leave a comment to initiate discussions. Your vote will be reflected immediately, but will be counted towards selections only if you purchase a ticket. Proposals will also be evaluated by a program committee consisting of:

Proposers must submit presentation drafts as part of the selection process to ensure that the talk is in line with the original proposal, and to help the program committee build a strong line-up for the event.

There is only one speaker per session. Attendance is free for selected speakers. HasGeek will cover your travel to and accommodation in Bangalore from anywhere in the world. As our budget is limited, we will prefer speakers from locations closer home, but will do our best to cover for anyone exceptional. If you are able to raise support for your trip, we will count that as speaker travel sponsorship.

If your proposal is not accepted, you can buy a ticket at the same rate as was available on the day you proposed. We’ll send you a code.

Tickets: http://jsfoo.doattend.com

Website: https://jsfoo.in/2013


The program committee will announce the first round of selected proposals by 15th August and a second round by 2nd September. We will finalize the schedule by 7th September. The funnel will close on 25th August. The event is on 20th and 21st September 2013.

Hosted by

JSFoo is a forum for discussing UI engineering; fullstack development; web applications engineering, performance, security and design; accessibility; and latest developments in #JavaScript. Follow JSFoo on Twitter more

Priyank Gupta


Calatrava : Inventing hybrid mobile app framework with Javascript bridges

Submitted Jul 31, 2013

Share our learnings around creating a framework with light weight javascript bridges to build mobile apps that are native in UI and hybrid in logic. This architecture of mobile app is fresh and almost seems evolutionary. Existing frameworks either enforce complete native development or try to reuse everything for a mobile app.

By leveraging Javascript and web technologies, what we have created is a new architecture paradigm to create hybrid apps that inherits the best of both world. Good looks and reusability.

I intend to share, how did we go about doing this and some of our learnings.


In rapidly evolving mobile ecosystem, it’s becoming increasingly difficult for businesses to tap multiple platforms. Frameworks that promise the use of Javascript and Web technologies to build omnipresent apps, fall short of expectations on account of limitations that are posed by mobile hardware and Javascript’s performance on it.

Our approach to the problem is different. We think Javascript and web technologies are future in mobile devices however not for everything. Lets build light weight and non-intrusive javascript bridges to create an architecture that allows us to:

  1. Create native user interface and yet with elegant architecture have reusable controllers and logic behind the scenes.
  2. Build javascript bridges that creates a extendible framework to build apps across rapidly evolving mobile platforms. Including BB10, Firefox OS etc.
  3. Devise an architecture, that allows us to reuse and merge the code across digital channels like web, mobile, tablets etc to converge with elegant use of javascript bridges.

It’s a concept that stems from the strengths of web technologies and leverages the ubiquity of Javascript on all the target platforms.

I intend to share:

  1. A glimpse into this architecture.
  2. A proof of concept app across platforms that hight fidelity native UI and reusable in logic in Javascript/Coffeescript
  3. Possibilities around extension of the architecture to leverage it across multiple digital channel.
  4. And while building native apps for mobile platforms how to build a mobile web site that comes at much reduced cost.
  5. Single page architecture of mobile web app, that makes all the magic possible


I would assume a fair understanding of following concepts:

  1. Underlying concept of single page architecture
  2. Knowledge of MVC architecture pattern
  3. Capabilities of Javascript in context of mobile devices and some idea about integration of native code that mobile platforms allow with Javascript.

Speaker bio

My name is Priyank and I work for ThoughtWorks. I am a Developer at heart with close to 9 years of experience in technologies like Javascript, Java, Ruby, C# and Objective C. I picked up Android as a platform of choice in 2009. Since then I have been involved in delivering apps, that have been used by hundreds and thousands of people across the globe. As part of development of these apps, I have worked through a variety of native and cross platform frameworks.

I see and realize the value of Javascript and other web technologies in context of mobile ecosystem and hence I am a big proponent of pushing Javascript to extremes to revolutionize the way mobile app development happens.

I contribute to popular mobile development framework called Calatrava and maintain a bunch of open source project on my Github repository. I think I understand this domain and want to share all the learning thats I have garnered with my experience and insights.

I have been passionate about spreading my experiences and learning and have done so in past as events like Droidcon 2012 .


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Hosted by

JSFoo is a forum for discussing UI engineering; fullstack development; web applications engineering, performance, security and design; accessibility; and latest developments in #JavaScript. Follow JSFoo on Twitter more