JSFoo 2017

JSFoo is a conference about JavaScript and everything related.

About the conference: JSFoo is a JavaScript conference hosted by HasGeek.

Theme this year: The broad theme this year is going to be Building Reliable Web Apps. Please refer to the Topics section below for the subject of talks and workshops we are looking for.

Format

We are inviting proposals for:
Full-length 40 minute talks.
Crisp 15 minute talks.
Sponsored sessions, of 15 minutes and 40 minutes duration (limited slots available; subject to editorial scrutiny and approval).
Hands-on Workshop sessions, 3 and 6 hour duration.

Selection process

Proposals will be filtered and shortlisted by an Editorial Panel. Please make sure to add links to videos / slide decks when submitting proposals. This will help us understand your speaking experience and delivery style. Blurbs or blog posts covering the relevance of a particular problem statement and how it is tackled will help the Editorial Panel better judge your proposals. We might contact you to ask if you’d like to repost your content on the official conference blog.

We expect you to submit an outline of your proposed talk – either in the form of a mind map or a text document or draft slides within two weeks of submitting your proposal.

Selection Process Flowchart

You can check back on this page for the status of your proposal. We will notify you if we either move your proposal to the next round or if we reject it. Selected speakers must participate in one or two rounds of rehearsals before the conference. This is mandatory and helps you to prepare well for the conference.

A speaker is NOT confirmed a slot unless we explicitly mention so in an email or over any other medium of communication.

There is only one speaker per session. Entry is free for selected speakers. As our budget is limited, we prefer speakers from locations closer home, but will do our best to cover for anyone exceptional. HasGeek provides these limited grants where applicable: two international travel and accommodation grants, three domestic travel and accommodation grants. Grants are limited and made available to speakers delivering full sessions (40 minutes or longer). Speaker travel grants will be given in order of preference to students, women, persons of non-binary genders, and individuals for Asia and Africa first.

Topics

Updated (19 April 2017): We are currently looking for talks in the following topics:

Testing: Testing tools and strategies; test driven development and testing culture; continuous integration and testing workflows; and case studies around testing your application.

Performance optimization: Performance analysis tools and techniques; best practices for building performant applications; browser, NodeJS, and framework internals; network protocols; and performance case studies.

Debugging: Tools for locating and fixing bugs in JavaScript applications; real world post-mortems of bugs that affected your organization; and using telemetry for debugging.

Immutability, type checking, and alternative programming languages: Alternatives to vanilla JavaScript; functional programming and immutability; types and type systems; and real-world case studies of introducing alternative programming languages and tools in your organization.

Build tooling: Build tools and automation, including task runners, linters, JavaScript bundlers, CSS pre- and post-processors, continuous integration tools, static analysis tools, and optimization tools.

Crash and performance monitoring: Monitoring applications for crashes and performance issues while in production.

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 for it to be available under a permissive open source licence. If your software is commercially licensed or available under a combination of commercial and restrictive open source licences (such as the various forms of the GPL), please consider picking up a sponsorship. We recognise 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”.

Important dates

Deadline for submitting proposals: 15 June 2017

Conference dates: 15–16 September 2017

Contact

For more information about speaking proposals, tickets and sponsorships, contact info@hasgeek.com or call +91 76763 32020.

Note: We aren’t accepting any new talks.

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

Sudipta Sen

@sanborn

RxJS Observables & Angular2 HTTP

Submitted Mar 13, 2017

Do you know how useful observables are while talking about reactive programming? You might have done a lot of reactive programming knowingly or un knowingly in your daily life and now ReactiveX made it more fun and easy. This talk is about the usefulness of Observables and real life use cases of Observables in an Angular2 applications with HTTP. Promises are good for solving asynchronous operations such as querying a service with an XMLHttpRequest, where the expected behavior is one value and then completion. The Reactive Extensions for JavaScript unifies both the world of Promises, callbacks as well as evented data such as DOM Input, Web Workers, Web Sockets. Once we have unified these concepts, this enables rich composition. ReactiveX is the combination of best ideas from observer pattern, the iterator pattern, and functional programming.

Outline

  • Introduction to ReactiveX
  • What is Observable
  • How to create an Observable
  • How to subscribe (/ unsubscribe) to an Observable
  • Handling errors in observables
  • Observable retry mechanism
  • Few other operators (mergeMap and combineLates, more if there is time)
  • Live example with Angular2 HTTP example with real life scenario
  • Promises Vs Observable (Live example with real life scenario)

Speaker bio

Sudipta is a code enthusiast, currently working for Red Hat Bangalore as a UI developer. He used to be a backend developer before he started his journey in Javascript with ReactJS almost one and half year back. He loves open source technologies and always open to learn new things. He believes in “Everything is a skill”. While not coding, he is travelling with his camera. He loves flying airplane simulators.

Links

Slides

https://speakerdeck.com/sanbornsen/rxjs-observables-and-angular2-http

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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