ConfPad

Chrome Developer Tools is magical. It lets you record network traffic, step through code, modify the DOM, and more! To learn when we would use each of these features, I'll walk you through my adventures trying to trick Taylor Swift’s website into giving me concert tickets. Instead of reading through all of the JS files in her site and scrolling through hundr…

This presentation demonstrates how learning just a little bit about JavaScript engine internals can help you improve the run-time performance of your JavaScript code — not just in V8 specifically, but across all JavaScript engines! I’ll start by explaining how V8 handles arrays behind the scenes, and especially how it can optimize operations on them. I can d…

If you’ve spent much time writing and debugging node module code for performance in a Js app, you’ve probably had a hard time managing memory and native code integration. In this talk, we venture deep into the belly of the Rust Language to uncover the secret incantations for building high performance and memory safe node modules using Neon, which helps you t…

Node Files. Take #1337. ~ * Action! * ~ INT. JSCONF AU CONFERENCE VENUE The camera zooms in on an intense discussion between Scully and Mulder. Both are huddled around a terminal, both are uncertain about the next steps. Ghosts of old TCP connections wail in the background. Scully is frantically typing. The left hand side shows a new session starting. Soon a…

The browser’s capibilities have snuck up on us over the years, and it’s turned into a full blown operating system! "But wait," I hear you protest, "it’s not like the browser can talk to stuff I have plugged in to my USB ports!". Ah! But it can! The new WebUSB spec has arrived, and is already supported in at least one browser today. The previous hacks of conn…

Oh no! Harry Potter, the hero from the J K Rowling’s wizarding universe, has been cursed by the super-villain, Lord Voldemort, and now he is trapped inside the Internet! Harry knows Parseltongue, which means that he can talk to snakes. Incredibly, Parseltongue also happens to be a Turing complete programming language! In order for Harry to escape from the In…

In 2017, companies globally spent $80B on digital advertising—web pages and mobile apps—delivering ads to billions of users, trillions of times. The majority of these ads were rendered in JavaScript environments. Technically, the challenge for JS developers is to instantaneously find the perfect match between an advertiser and a user, regardless of the websi…

August 30, 2016, was by all accounts an average Tuesday, and release number 523 just a simple re-factor, but something went horribly wrong that day: bad code escaped from the office, and it quickly spread to infect tens of thousands, giving rise to a hoard of zombie ServiceWorkers! This is a disaster about a typo. This is a thriller about technology out of c…

In this talk we will build a 3D ray tracer with Javascript. We learn about the basics of real time 3D graphics and what we need in order to produce realistic looking 3D graphics in the browser. It’s fun to learn about 3D and graphics, plus seeing how a seemingly complex concept such as ray tracing can be broken down to simpler concepts is inspiring. I enjoye…

Over the last years a modular approach to programming in JS gained a huge following and with the advent of virtual DOM building isomorphic JavaScript application for the web became dramatically more approachable; yet, we are still largely deploying monolithic application blobs that know how to render the settings page of our single page apps before accepting…

For so many of us, myself included, the art world is the entry point into the coding world. Here we will explore ins and outs of generative art, and experience the joy of creating art with code. Generative art can be as simple or complex as you like, at the end of the day, everyone will have the mindset and processes down to create their own unique pieces of…

Based on my experience in diagnosing and troubleshooting highload e-commerce Node.js app in production, I’ve identified three stages in the Node.js diagnostic history. I’d like to briefly tell this path and show where we are now and tell in details "How to debug and tracing Node.js apps on different levels, and how to track performance problems and memory le…

As an instructor of front-end software engineering, I’ve seen first-hand how difficult it is for new developers to navigate call stacks and decrypt error messages. We have built a culture that considers effective error handling a secondary priority, which has a significant impact on those who are just learning to code. Debugging is a huge part of the develop…

I remember attending my first JSConf in 2014 and watching Marcy Sutton talk about accessibility and the Shadow DOM. I was hooked on creating an accessible web for everyone. However, it's really hard to get accessibility prioritized when you're running as a lean startup. Years later, my company is ready to hop on the train and now we're working to implement t…

Metaphors are an essential means of communication and method of teaching for developers. Without them and Lin Clark, it would be much more difficult for teams to adopt Redux. But learning by association has its limits. When we only discuss the things we can relate to we reinforce existing stereotypes that box us in. Instead of thinking outside the box, we wi…