JSFoo 2014

JavaScript as the centerpiece of a complex web stack

In 2011, Node.js put JavaScript firmly in the backend, making JavaScript developers productive at both ends of the stack, and making it possible for business logic to finally be moved into JavaScript.

In 2012, AngularJS made us think about moving business logic completely into the client-side as an actually sensible idea. Meteor give that idea two thumbs up.

In 2013, we went wild thinking of all the possibilities. JavaScript phones! Robots!

In 2014, it’s time for some sobering up. The backends we built over a decade in Ruby and Python aren’t going away. New languages like Go and Hack are tantalising us with new possibilities. Our applications are increasingly distributed, often involving third party APIs. In such a scenario, where does your business logic reside?

In 2014, JavaScript is no longer a toothless child or a rebellious teenager that wants to do everything itself. JSFoo 2014 is about working with JavaScript as the centerpiece of a complex web stack.


This year’s edition spans four days, with two days of workshops and two days of conference. All days feature a single track. We invite proposals for:

  • Full-length 40 minute talks
  • A crisp 15-minute presentation
  • Sponsored sessions, 40 minute duration
  • Flash talks of 5 minutes duration. Submissions for flash talks will be accepted during the event
  • Three hour workshops where everybody gets their laptop out and follows along

Criteria to submit

You must be a practising web developer or designer, and must be able to show how your own work has advanced the state of the web in the past year. You are expected to present original work that your peers — this event’s audience — recognise as being notable enough to deserve a stage.

If you are excited about someone’s work and believe it deserves wider recognition, we recommend you contact them and ask them to submit a proposal.

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.

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 editorial panel build a strong line-up for the event.

There is only one speaker per session. Entry is free for selected speakers. HasGeek will cover your travel to and accommodation in Bangalore from anywhere in the world for speakers delivering full sessions (30 minutes or longer). 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.

Commitment to Open Source

HasGeek believes in open source as the binding force of our community. If you are describing a codebase for developers to work with, 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.

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

Prasanna Venkatesh


HTML5 Performance API's - Analyze and Optimize your website

Submitted Jun 15, 2014

HTML5 has evolved so much that many wonderful things we can do @ ease. Currently faster loading websites are the main focus point and how easily we can analyze the performance of our website through native HTML5 API’s is what this session is all about. It will be an interactive session with graphic charts explaining the different metrics, drag and drop any resource(JS/CSS etc) to measure the load time of that.


Performance is the best user experience. No matter how cool your site looks and functions, if it doesnt load or work faster, it makes no sense. Debugging the code, analyzing and then finding ways to optimize was never an easy task. Welcome to the world of HTML5 and their remarkable API’s which will help in providing the load time, network latency and a wide variety of information. We can use those data points and find where we need to fine tune our site and make our site perform faster.
Not just the overall performance, but we can measure the load times and other various factors at a sub millisecond rate of individual resources like CSS,JS,images and also external plugins/widgets. We can also automate this process along with Google’s pagespeed insights available as both node module and grunt task and ensure we have an effective performance analyzing tool integrated to our builds.
Also we will discuss some of the optimization techniques under the hood to help us make our site load faster and ensure users have a smooth and seamless user experience, no matter how complex our web site is.

Speaker bio

I am Prasanna Venkatesh, working as Senior Interactive Developer @ SapientNitro Bangalore. Have more than 9 years of software design and development experience in the world of Front end and backend, delivering high quality websites. Website design and architecting solutions has been my passion and working @ sapient gives me that learning curve and also ability to work on cutting edge technologies.


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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