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

Anshu Verma


Scalable front end tech stack for >1.3M+ users and a 400+ person development team.

Submitted Aug 10, 2014

Front end development is a rapidly evolving universe with its landscape changing everyday. Everyday there are new trends, tools, libraries, frameworks and patterns that enable a better, a more beautiful and a faster web. The pace of change is so fast that what works today, is obsolete tomorrow or there is a new and a better way.

In this session, we will use our journey of rewriting a global SaaS offering that generates $200M in annual revenue and serves more than 1.3 million users worldwide to share the following

  • Practices & technology stack that are key to building a large single page web app - why they are important and what went behind choosing them.
  • Patterns that allow to swap technologies seamlessly and enable large scale parallel development.
  • Node.js as the new front end backend

Expect to see some code and cool demos as well in this session.


Intuit’s flagship product, Quickbooks online, is the no. 1 small business cloud accounting solution that is used by 1.3M+ users worldwide in more than 10 languages. It serves over $1 trillion in commerce where users and accountants from 150 countries depend on our solutions for running their business and be profitable.

A couple of years ago, based on the rapid user growth in Quickbooks, we realized that our existing approach for front end development needs to change. We were getting dogged by questions about performance, an aging user interface and an increasing difficulty faced by developers to build apps. We knew, we needed to change. But, the change was not trivial - to put it in perspective, we were talking about almost 2M lines of existing code that powered our front end. So, while the case for change was clear, the path was not.

After some prototypes where we A/B tested new features with different front end technology stacks, we soon had a winner. The winner was - we will do full front end development with JavaScript and it’s complementing technologies. Period.

The path to new stack was non-trivial though – the bold call to replace almost 2M lines of current code sent shivers down the spine. Today, after a successful rewrite and a complete one year since the full Javascript stack in production to all users, we have not only survived— but we have accelerated our customer growth and our user satisfaction, as measured by the Net Promoter Score.

The following articles published by various experts give a brief indication of how users loved the new interface

  1. http://www.intuitiveaccountant.com/training-center/the-new-qbo---slick–n-speedy
  2. http://www.sleeter.com/blog/2013/08/quickbooks-online-user-interface-update/
  3. http://www.inc.com/john-brandon/tested-new-intuit-quickbooks-online-plus.html

In this session, We will share our experiences during this transformation— what worked well as well as what you should avoid. We will also show you production code so that you can incorporate these techniques into your own SaaS offerings.

Speaker bio

Anshu Verma, Distinguished Architect at Intuit, has a passion for building highly scalable and complex SaaS offerings that are easy to manage. In his role at Intuit, he is focussed on enabling Quickbooks Online to be an open platform via technology transformation in the areas of web, globalization and user contribution systems. He has been instrumental in leading Quickbooks online’s journey to a platform that serves 1.3M+ paying users across 160 countries, supports 46 languages, handles multi-currency accounting for 143 currencies & integrates with numerous 3rd party apps and business partners across the world.


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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