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Feb 15 - 16, 2024
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35 Years of WWW: Working as a Content Creator, Designer and Developer With the Coolest Medium Ever
C3 Dev Festival 2024C3 Dev Festival 2024
30 min
35 Years of WWW: Working as a Content Creator, Designer and Developer With the Coolest Medium Ever
Back in the late 90s, I worked as a radio newscaster and used computers as a hobby. First writing pretty pointless programs, then playing games, being bad at them and analysing the games how to give myself endless lives. Then I got access to the web and everything changed. I knew, this was the me...
Introducing Waku: The Minimal React Framework
React Summit 2024React Summit 2024
19 min
Introducing Waku: The Minimal React Framework
Waku is an ongoing project aimed at developing a React framework with first-class support for React Server Components. In this talk, I will provide an overview of Waku and walk you through how you can start developing a new project using Waku.
Web Performance: The African Case
JSNation 2024JSNation 2024
22 min
Web Performance: The African Case
We often assume that everyone has a good internet connection and hardware with high specifications. While this might be true in some regions, it is not the case worldwide. I want to draw attention to Africa, where many countries struggle with poor 3G connections that are costly, depending on the...
Server-Driven Mobile Apps With React Native
React Summit 2024React Summit 2024
8 min
Server-Driven Mobile Apps With React Native
How do you create a scalable application with lots of different layouts, screens, giving enough flexibility to each team to customise without adding orders of magnitude in complexity to your app? Companies like Airbnb, Meta, and Lyft approach this with server-driven UI. We’ll explore how this can...
The Art of Interviewing People or How to Identify Senior Talent
TechLead Conference 2024TechLead Conference 2024
22 min
The Art of Interviewing People or How to Identify Senior Talent
This session explores the art of interviewing beyond traditional assessments, focusing on cultivating soft skills, mentorship, and recognizing senior talent. Covering strategies to build rapport, assess soft skills effectively, and shift the interview dynamic towards mentorship, the talk emphasiz...
SolidStart 1.0: Peeking Under the Hood
React Summit 2024React Summit 2024
30 min
SolidStart 1.0: Peeking Under the Hood
SolidStart is the full stack Meta-Framework from the SolidJS ecosystem. It brings multiple tools and libraries together in a composable fashion to offer highly performant, understandable, and scalable foundations for web applications. Let's explore how SolidStart solves common UX and DX for build...
Technically Included (The Best Kind of Included)
React Summit 2024React Summit 2024
30 min
Technically Included (The Best Kind of Included)
The design-development gap hurts your React projects: slower timelines, compromised quality, and repetitive handoffs. This talk explores the origins of this problem, the differences in language and environment, and offers solutions through processes, tools, and collaboration. Discover how includi...
htmx Is Pro-JavaScript
JSNation 2024JSNation 2024
22 min
htmx Is Pro-JavaScript
In this talk we will take a look at an idiosyncratic javascript library, htmx, which is designed to make HTML more powerful as a hypermedia. It does this by generalizing the idea of hypermedia controls such as anchor tags and forms. Web developers who use htmx typically do not write nearly as muc...
Animating React With Finesse!
React Summit 2024React Summit 2024
22 min
Animating React With Finesse!
Animations are the heartbeat of captivating web experiences but wield them carelessly, and the enchantment fades into frustration. Join Nikhil on an exhilarating journey as he reveals the secrets to crafting mesmerizing, high-performance animations in your React apps.In this dynamic talk,...
Conducting Interviews and Interviewing in the Age of AI Tools
TechLead Conference 2024TechLead Conference 2024
29 min
Conducting Interviews and Interviewing in the Age of AI Tools
Featured
Trending today
Challenges for Incremental Production Optimizations
JSNation 2024JSNation 2024
32 min
Challenges for Incremental Production Optimizations
The Good, The Bad, and The Web Components
JSNation 2023JSNation 2023
29 min
The Good, The Bad, and The Web Components
Top Content
Remix: Embracing Web Standards to Redefine Modern Web Development
React Advanced Conference 2023React Advanced Conference 2023
26 min
Remix: Embracing Web Standards to Redefine Modern Web Development
Why You Should Use Redux in 2024
React Summit 2024React Summit 2024
33 min
Why You Should Use Redux in 2024
Top Content
Bringing React Server Components to React Native
React Day Berlin 2023React Day Berlin 2023
29 min
Bringing React Server Components to React Native
Top Content
You Can’t Use Hooks Conditionally… or Can You?
React Summit 2023React Summit 2023
28 min
You Can’t Use Hooks Conditionally… or Can You?
Top Content
Building Enterprise-grade GraphQL APIs with Domain-Driven Design and Clean Architecture
React Day Berlin 2023React Day Berlin 2023
22 min
Building Enterprise-grade GraphQL APIs with Domain-Driven Design and Clean Architecture
Short takes
Webdevelopment Tailored for 2024
React Summit 2024React Summit 2024
7 min
Webdevelopment Tailored for 2024
Most developers closely follow the framework wars. So busy with these games, that we forget to check what new features HTML, CSS, and JavaScript offer us. Native modals, dynamic viewport units, and optional chaining are just some of the features you should use already! If you stopped following We...
Deconstructing Distributed Tracing
React Day Berlin 2023React Day Berlin 2023
8 min
Deconstructing Distributed Tracing
Distributed tracing is a powerful technique that allows you to track the flow and timing of requests as they navigate through a system. By linking operations and requests between multiple services, distributed tracing provides valuable insights into app performance and helps identify bottle...
Replacing Shell Scripts with Cross-Platform TypeScript
TypeScript Congress 2023TypeScript Congress 2023
8 min
Replacing Shell Scripts with Cross-Platform TypeScript
Shell scripts serve a useful purpose, but they have some downsides. What if we could overcome these issues and make our scripts more powerful by utilizing familiar cross-platform TypeScript? In this talk, we'll discuss why you should switch your shell scripts to TypeScript and demonstrate a...
Building a JS Engine -- For Fun!
JSNation 2024JSNation 2024
9 min
Building a JS Engine -- For Fun!
Modern production-grade JS engines can seem intimidating, but that's not all there is! This lightning talk draws from my past experiences working on hobbyist JS engines, and it will cover the following:
- Different angles to approach this seemingly complex task- Things y...
How to Automatically Consume APIs with React
React Day Berlin 2023React Day Berlin 2023
7 min
How to Automatically Consume APIs with React
In this talk, I'll introduce the audience to the potential of OpenAPI in simplifying and enhancing the development process for React applications. I will demonstrate how OpenAPI can be harnessed to seamlessly autogenerate REST APIs, streamlining the consumption of data within React projects...
Solving i18n for React Server Components
React Summit 2024React Summit 2024
7 min
Solving i18n for React Server Components
How the transition to React Server Components enables better internationalization solutions.
Transforming Images Using AI Without Leaving Your React App
React Summit US 2023React Summit US 2023
5 min
Transforming Images Using AI Without Leaving Your React App
Image optimization libraries abstract away the hard parts of working with images so that you can focus on shipping. But these tools don’t let you do complex transformations to your existing images. Adding text, removing distracting backgrounds, or upscaling images to higher resolution all require...
First Comes Conflict, Then Comes Growth
React Summit 2024React Summit 2024
6 min
First Comes Conflict, Then Comes Growth
We all intend to grow and strive to make a bigger impact until conflict shows up. We view conflict as a negative thing that gets in the way of growth when it is both necessary and vital. In this presentation, I'll share my experiences and ideas on how you can handle conflict and stay on the path...
AsyncLocalStorage vs. React Context
React Summit 2024React Summit 2024
8 min
AsyncLocalStorage vs. React Context
AsyncLocalStorage is a modern API which has landed in many JavaScript runtimes. It allows developers to pass a value to a callback function without needing to drill through a direct reference. In this, it is similar to React’s Context. However, although they have a somewhat related purpose, parti...
Generating TypeScript with TypeScript
DevOps.js Conf 2024DevOps.js Conf 2024
8 min
Generating TypeScript with TypeScript
A deep-dive into how we automatically generate TypeScript definitions for the V8-based runtime that powers Cloudflare Workers. We'll give an overview of how we use the TypeScript compiler API, how we enhance auto-generated definitions with user-written overrides to improve ergonomics, and how we...
Popular
JavaScript
Peace, Love and JavaScript
Node Congress 2024Node Congress 2024
17 min
Peace, Love and JavaScript
The stability and security of open source projects can be found in the people shaping the culture as much as the code they write. The Executive Director of the OpenJS Foundation will share lessons she learned along the way on how to build trust and transparency to minimize drama and overcome chal...
Rise of the Robots
TestJS Summit 2023TestJS Summit 2023
27 min
Rise of the Robots
Discover the future of automated mobile application testing with a JavaScript-powered mechanical arm. During this talk we will explore the design, prototyping, and implementation of this cutting-edge solution, optimizing testing efficiency and precision on real mobile devices. We will also discus...
Generating types without climbing a tree
TypeScript Congress 2023TypeScript Congress 2023
30 min
Generating types without climbing a tree
How do you generate types dynamically? How do you write a script that creates some typescript code? The approach most people would recommend is to use Abstract Syntax Tree manipulations. I was working on a deadline to implement types for our OpenAPI client, and I would have missed our relea...
Game Development Patterns and Architectures in JavaScript
JS GameDev Summit 2023JS GameDev Summit 2023
28 min
Game Development Patterns and Architectures in JavaScript
In the realm of game development, the right architecture and design patterns can make all the difference. This session delves into the world of game development patterns and architectures in JavaScript, offering a comprehensive exploration of the techniques and strategies used to create engaging...
JavaScript Haikus: My Adventures in Tiny Coding
JS GameDev Summit 2023JS GameDev Summit 2023
27 min
JavaScript Haikus: My Adventures in Tiny Coding
Discover the art of crafting extremely small JavaScript programs. In this talk you’ll learn principles and techniques behind crafting compact yet powerful scripts that are shorter than this description! Dive into the captivating world of minimalist coding, where we use these scripts to conjure ar...
Leveraging the Event Loop for Blazing-Fast Applications!
React Advanced Conference 2023React Advanced Conference 2023
35 min
Leveraging the Event Loop for Blazing-Fast Applications!
Some weeks ago I made my own implementation of signals, capable of updating 300k times the DOM in circa 600ms. Leveraging the Microtask Queue, I was able to bring that number down to 6ms, effectively improving performances by 100x. I wanna share how the Microtask Queue works and how you can lever...
Testing: Do More With Less
JSNation 2024JSNation 2024
27 min
Testing: Do More With Less
How can you be confident that your code is well-tested? For me, the criteria are straightforward: you feel comfortable deploying it automatically to production on a Friday evening, and the release pipeline stays as green as an evergreen tree. In this talk, I'll share some approaches that I am fol...
Generating Typed Code
TypeScript Congress 2023TypeScript Congress 2023
22 min
Generating Typed Code
For the past six at Rollbar the engineering team has been working tirelessly to migrate our legacy application to a modern Javascript tech stack. We’ve leveraged Next.js, GraphQL and a number of other JS tools to ship more features, make our dev team happier and achieve an impressive 7-fold...
I Run Code From the Internet!
React Advanced Conference 2023React Advanced Conference 2023
20 min
I Run Code From the Internet!
Is it wise to run code from strangers? Well, we do it all the time and there's no backing out of it. Let's take a look at how a JavaScript project could get hacked and then defend itself from supply chain attacks. 
Limit access to globals for each package? Sure. Control...
Are the (module) types wrong?
TypeScript Congress 2023TypeScript Congress 2023
30 min
Are the (module) types wrong?
Have you ever installed a dependency, imported it just like the README instructs, and immediately been met with strange TypeScript errors about default imports, the output module format, or ESM/CommonJS interoperability? When everything works at runtime but TypeScript complains, you might w...
React
Perfect Pitch: Unveiling the Mathematical Symphony Behind a Guitar Tuner
React Summit 2024React Summit 2024
22 min
Perfect Pitch: Unveiling the Mathematical Symphony Behind a Guitar Tuner
Join me on a musical journey through the world of open source software as I share the story behind crafting from scratch an online guitar tuner with Javascript.In this talk, we'll explore the delightful intersection of mathematics and development, where a simple curiosity led to the creati...
Power Fixing React Performance Woes
React Advanced Conference 2023React Advanced Conference 2023
22 min
Power Fixing React Performance Woes
Top Content
Next.js and other wrapping React frameworks provide great power in building larger applications. But with great power comes great performance responsibility - and if you don’t pay attention, it’s easy to add multiple seconds of loading penalty on all of your pages. Eek! Let’s walk through a case...
Virtual DOM: Back in Block
React Day Berlin 2023React Day Berlin 2023
9 min
Virtual DOM: Back in Block
Is the Virtual DOM pure overhead? In this tech talk, Aiden Bai explores the performance implications of the Virtual DOM in frameworks like React and presents an alternative approach called the \"block virtual DOM.\" Aiden delves into the origins of the Virtual DOM, its purpose in addressing...
React Compiler - Understanding Idiomatic React (React Forget)
React Advanced Conference 2023React Advanced Conference 2023
33 min
React Compiler - Understanding Idiomatic React (React Forget)
Top Content
React provides a contract to developers- uphold certain rules, and React can efficiently and correctly update the UI. In this talk we'll explore these rules in depth, understanding the reasoning behind them and how they unlock new directions such as automatic memoization. 
Zod === TypeScript, but at Runtime in Your React Applications
React Advanced Conference 2023React Advanced Conference 2023
20 min
Zod === TypeScript, but at Runtime in Your React Applications
Many Javascript developers have added typescript to their projects in the last few years. But how many of them are sure of their types at runtime? Can types be guaranteed on runtime too?
Using Zod that can be realized! Let's see together how we can use Zod to improve the awaren...
The State of The State In The App Router
React Advanced Conference 2023React Advanced Conference 2023
32 min
The State of The State In The App Router
NextJS 13.4 changed the game with the App Router and React Server components. The change to the state management model looks simple to start, but gets complex very quickly as you try to create the practical every-day user experiences that were straightforward in the pages model. We'll talk about...
React State Management with Valtio
React Summit US 2023React Summit US 2023
10 min
React State Management with Valtio
In this talk, we will explore how Valtio can simplify your React state management by providing a minimalist and performant solution. We will cover the basics of Valtio, including how to create and update a store and how to access and modify the store from your components. We will also dive...
Building End-to-End Encrypted Apps (Web & React Native)
React Summit 2024React Summit 2024
32 min
Building End-to-End Encrypted Apps (Web & React Native)
Building end-to-end encrypted applications is exciting, but also intimidating. This talk is designed to lower the entry barrier, offering a clear roadmap for integrating end-to-end encryption in collaborative, real-time applications.We begin by unveiling a simple design with one shared enc...
The Art of Ignoring Best Practices for React Performance
React Summit 2024React Summit 2024
19 min
The Art of Ignoring Best Practices for React Performance
Have you ever wanted to break the rules and be a React troublemaker? I’ll show you how ignoring React’s best practices can improve performance, all without major rewrites to your codebase. To understand how, we’ll learn when React decides to render and how to trick it to render less frequently. W...
Game Development with ReactJS, CSS, and React Three Fiber
JS GameDev Summit 2023JS GameDev Summit 2023
22 min
Game Development with ReactJS, CSS, and React Three Fiber
In this talk, I will share my experience in game development using ReactJS/CSS. We will explore how to make the most out of the component management provided by this library, along with the capabilities of CSS for creating an appealing user interface. Additionally, we will uncover how to leverage...
Node.js
Guardians of the Applications: Conquering Node.JS App Monitoring
DevOps.js Conf 2024DevOps.js Conf 2024
21 min
Guardians of the Applications: Conquering Node.JS App Monitoring
Ever struggled with monitoring in your Node.JS apps? Not anymore! By sharing the good, the bad, and the hair-pulling from our own experiences, I want to help you steer clear of monitoring chaos. We’ll see how truly knowing how your apps work help you have more focused monitoring. This allows you...
Milo, a New HTTP Parser for Node.js
Node Congress 2024Node Congress 2024
23 min
Milo, a New HTTP Parser for Node.js
Node.js HTTP parsing currently relies on llhttp, a parser which provides very good performance but has currently some challenges for the health of the runtime.Is it possible to create a modern, maintenable, well documented, secure and performant alternative? Yes it is!Let me introdu...
Understanding Package Resolution in Node.js
Node Congress 2024Node Congress 2024
11 min
Understanding Package Resolution in Node.js
Everytime we import or require a package, we follow a set of rules to resolve the package. This talk will cover the different ways Node.js resolves packages and how to debug when things go wrong. We will also cover the new features in Node.js 20 that make package resolution faster and more reliab...
The Need for Speed: How AWS New JS Runtime is Redefining Serverless Latency
Node Congress 2024Node Congress 2024
25 min
The Need for Speed: How AWS New JS Runtime is Redefining Serverless Latency
In today’s world of modern applications, swift responsiveness is essential. Users expect seamless interactions where every action triggers an immediate response.Serverless services such as AWS Lambda, allows developers to build modern applications without the need to manage traditional ser...
Exploring Node Modules for Test Automation
TestJS Summit 2023TestJS Summit 2023
19 min
Exploring Node Modules for Test Automation
In my talk I will explore the challenges faced when trying to manage and maintain test code across multiple projects and what made me create my first Javascript module. I will showcase the process of building, publishing, and versioning it using the powerful capabilities of GitHub Actions. And fi...
Parsing Millions of URLs per Second
Node Congress 2024Node Congress 2024
14 min
Parsing Millions of URLs per Second
With the end of Dennard scaling, the cost of computing is no longer falling at the hardware level: to improve efficiency, we need better software. Competing JavaScript runtimes are sometimes faster than Node.js: can we bridge the gap? We show that Node.js can not only match faster competitors but...
Creating an HTTP Server from Scratch with Node-addon-api, Libuv, and Milo
Node Congress 2024Node Congress 2024
18 min
Creating an HTTP Server from Scratch with Node-addon-api, Libuv, and Milo
Let's explore the magic behind Node.js and create a simple http server! We'll go step-by-step, understanding how libuv makes node asyncronous and how Milo helps our server parse HTTP request. We'll use node-addon-api to create the bridge between c++ and javascript....
Exploring Node.js Test Runner
TestJS Summit 2023TestJS Summit 2023
28 min
Exploring Node.js Test Runner
The talk "Exploring Node.js Test Runner" delves into the concept of a test runner, shedding light on its essential role within the Node.js ecosystem. It provides an overview of why the development of a test runner for Node.js took considerable time, and presents an exploration of its inner workin...
Making My Node.js API Super Fast
Node Congress 2024Node Congress 2024
34 min
Making My Node.js API Super Fast
Node.js servers need to process a large number of requests concurrently as the scale grows.  A Node.js micro service which receives an API request needs to do multiple actions, like parsing JWTs, use caching, work with the databases and more. In this talk, Tamar will show strategies to improve yo...
Deep Dive into Undici
Node Congress 2024Node Congress 2024
24 min
Deep Dive into Undici
Undici, the next-generation HTTP client built by the Node.js Core team, powers Node.js core fetch(). Let’s dig into how its internals, discovering how to work with Dispatchers, Agents, and Pools. Last but not least, we’ll even do some magic.
Testing
We've Rested Long Enough, What's Next?
TestJS Summit 2023TestJS Summit 2023
17 min
We've Rested Long Enough, What's Next?
Many developers are familiar with consuming/designing RESTful APIs, but what about building and consuming GraphQL and gRPC APIs? What about event-driven or asynchronous APIs? What are the benefits and technical limitations of each? Let’s go down the rabbit hole and explore some of these API types...
No More Flaky Tests!
TestJS Summit 2023TestJS Summit 2023
29 min
No More Flaky Tests!
In this talk, you’ll learn what flaky tests are, the importance of deterministic tests, the collateral effects of non-deterministic tests, the motives why tests can become brittle, and finally, what to do (and what not to do) when you find flaky tests
Measure and Improve Frontend Performance by Using Test Automation
TestJS Summit 2023TestJS Summit 2023
22 min
Measure and Improve Frontend Performance by Using Test Automation
Automated performance testing can help detect the harmful effects of code changes on application performance. Learn how to use tools like Lighthouse and Web Core Vitals in your CI and set performance thresholds to maintain optimal frontend performance in this session.
Testing Alternative Runtimes with Node and Vitest
Node Congress 2024Node Congress 2024
25 min
Testing Alternative Runtimes with Node and Vitest
A deep dive into how we built support for running Vitest tests in the Cloudflare Workers runtime. We'll start by giving an overview of the Cloudflare developer platform, including our open-source workerd JavaScript runtime and local simulator Miniflare. Next we'll talk about how Vitest works and...
Navigating the Chaos: A Holistic Approach to Incident Management
DevOps.js Conf 2024DevOps.js Conf 2024
26 min
Navigating the Chaos: A Holistic Approach to Incident Management
Incident management can be challenging and throw you curveballs with unexpected issues, resulting in data loss, downtimes, and overall money & hours of sleep going to waste, BUT! There are practical things you could do to make it a smoother process and handle it better.
Remember when we...
Cypress Component Testing vs React Testing Library
TestJS Summit 2023TestJS Summit 2023
25 min
Cypress Component Testing vs React Testing Library
CCT vs RTL talks about the similarities between the tools, the differences, compares the ways of doing the same things with the tools, and finally gives a developer experience comparison demo.
The Future is Today: Leveraging AI in Software Testing
TestJS Summit 2023TestJS Summit 2023
25 min
The Future is Today: Leveraging AI in Software Testing
In this talk, we will discuss leveraging Machine Learning practices in Software Testing with several practical examples and a case study that I used in my project to do Bug Triage. Let's embrace the future together!
Stop Triaging Your Test Suite
TestJS Summit 2023TestJS Summit 2023
29 min
Stop Triaging Your Test Suite
At some point, we accepted that end-to-end tests will be flaky, it’s okay to add retries, and it’s best practice to quarantine bad tests. It doesn’t have to be this way!This talk will cover the most common reasons for flaky tests, how to debug them with a time travel debugger, and how to fix them...
How Realm by MongoDB is Testing Native Modules “on device”
React Summit US 2023React Summit US 2023
11 min
How Realm by MongoDB is Testing Native Modules “on device”
Running tests on Node.js is common practice for app and library developers. But when your library is integrating more deeply with the platform, operating system or JS engine, you need to run tests “on device” increases. The Realm JS team at MongoDB is faced with this challenge, as we’re maintaini...
We May Not Need Component Testing
Vue.js Live 2024Vue.js Live 2024
26 min
We May Not Need Component Testing
Testings are mandatory and unit tests are the foundation for building a good testing system for our project. But for front end projects which involve components, how many unit tests are considered efficient and not overkill? Should we use additional libraries like Testing Library or Vue Test Util...
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