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JSNation 2023

Phil Nash

React Summit

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React Summit 2023

JSNation 2024

JSNation US

JSNation US 2024

Retrieval augmented generation (RAG) provides large language models with up to date information and helps them hallucinate less. But how does it all work beneath the covers? In this live coding session we'll build the components of a RAG system from scratch in JavaScript. (Aside from the LLM, there probably isn't time for that!) By building our own, we'll understand vectorisation, similarity search, and the role of embedding models and vector databases. We'll then plug it all together to see our augmented bot in action. You'll get a good grounding in the components of successful chatbots and why they work.

Build RAG from Scratch

One of the most common issues in JavaScript code bases is that our code is too complex. As projects and their requirements evolve, complexity creeps in. Excess complexity slows progress, frustrating us as we try to keep large chunks of a program in our heads just to understand what is happening. To conquer complexity, we must refactor! In this talk, we'll investigate how to identify unnecessary complexity in our code base using cognitive complexity as a measure, how to approach refactoring complex code, and what tools are available to help us refactor. We'll put it all into practice through a live example. By the end of the talk, you'll be excited to tackle that 1000-line monstrosity of a function in your own code base (you know the one).

Conquering Complexity: Refactoring JavaScript Projects

Can we get rid of passwords yet? They make for a poor user experience and users are notoriously bad with them. The advent of WebAuthn has brought a passwordless world closer, but where do we really stand? In this talk we'll explore the current user experience of WebAuthn and the requirements a user has to fulfill for them to authenticate without a password. We'll also explore the fallbacks and safeguards we can use to make the password experience better and more secure. By the end of the session you'll have a vision for how authentication could look in the future and a blueprint for how to build the best auth experience today.

The State of Passwordless Auth on the Web

Testing is a crucial albeit difficult part of software delivery. Make sure your JavaScript apps are always spotless with the following compilation of free online tutorials, courses, and talks from our conferences. They'll take you on a journey from basics to advanced methods and even philosophical questions about testing.

This page contains talks, workshops, tutorials and presentations about testing for JavaScript developers. Learn the best practices of testing code, how to design tests that are most effective, and how to debug problems in your code. Discover how to use automated testing tools, such as Jest and Mocha, to make sure your code is working correctly. Get answers to your questions on topics like unit testing, integration testing, end-to-end testing, and more. With these resources, you can become an expert in testing JavaScript code.

Testing Talks, Workshops, Tutorials, and Presentations for JavaScript Developers

Build tools are programs that automate the process of creating a software application. They are used to compile source code, run tests, package applications, and deploy them into production environments. Build tools help developers save time by automating the process of building an application from its source code. In JavaScript development, build tools like Grunt, Gulp, Webpack, and Browserify can be used to automate tasks such as minifying code, running unit tests, and compiling Sass or Less files.

This page contains talks, workshops, tutorials and presentations about build tools, a critical component of web development. Learn how to use build tools to automate tasks such as compilation, minification, unit testing, linting and more. Discover the best practices for efficient project management and get tips on how to get started with build tools. Get access to comprehensive resources from experienced professionals and stay up-to-date with the latest trends in JavaScript development.

Learn How to Use Build Tools for JavaScript Development: Talks, Workshops, Tutorials & Presentations

Did you know that TypeScript lets you write JavaScript the way you really want to? Explore the variety of Typescript courses we compiled from our speakers and collaborators and find out what you can do with this language and how it improves the development experience.

This page contains talks, workshops, tutorials and presentations about Typescript. Learn from experienced JavaScript developers how to get started with Typescript and how to use it in your projects. Get the latest tips and tricks for coding with Typescript and find out how to optimize your code for maximum performance. Discover how to create efficient and maintainable applications with Typescript and take your development skills to the next level.

Learn Typescript: Talks, Workshops, Tutorials & Presentations for JavaScript Developers

DevTools is a set of web development tools built into the Chrome browser. They allow developers to inspect and debug HTML, CSS, and JavaScript code on any web page. DevTools provides access to the Document Object Model (DOM), allowing developers to view the structure of a page and make changes to it in real-time. It also provides features such as network performance analysis, JavaScript debugging, and memory profiling, which help developers optimize their code.

DevTools Talks, Workshops, Tutorials and Presentations

Discover the power of DevTools with our range of talks, workshops, tutorials and presentations. Our experts will help you understand how to use DevTools to debug, inspect, and improve your code. Learn best practices for debugging, profiling, and optimizing your JavaScript applications. Get up-to-date on the latest trends in DevTools and find out how they can help you become a better developer. Whether youre a beginner or an experienced programmer, we have something for everyone. Come join us and explore the world of DevTools!

DevTools Talks, Workshops, Tutorials & Presentations: Get the Most Out of Your JavaScript Development!

We're bringing free articles, videos, courses, and tutorials to help you learn all about ReactJS, whether you're a beginner or a pro. Introduced in 2011, the framework has become essential for web and mobile developers alike, enabling modern apps by look and function. And while other JS tools have expanded or revised its original notions, React's popularity is still the one to beat.

React is a powerful JavaScript library for building user interfaces. Learn more about React with our comprehensive talks, workshops, tutorials and presentations. Our experts will help you understand the fundamentals of React, as well as advanced concepts such as state management, routing, performance optimization and more. With our resources, you’ll be able to create stunning web applications with React and take your development skills to the next level.

React Talks, Workshops, Tutorials and Presentations for JavaScript Developers

Frontend refers to the part of a website or application that users interact with. It is typically built using HTML, CSS and JavaScript to create an interface that allows users to view and interact with content. Frontend developers are responsible for creating the visual elements of a website or application, such as layout, styling, animation, and user interaction. This includes designing how a page looks, how it responds to different events, and how it interacts with the user.

The page contains talks, workshops, tutorials and presentations about frontend and is designed for JavaScript developers looking to improve their knowledge and skills in this area. Here you can find the latest insights, tools and techniques to help you stay up-to-date with the ever-changing frontend landscape. Whether youre a beginner or an experienced developer, youll find something to help you become a better frontend engineer.

Frontend Talks, Workshops, Tutorials & Presentations for JavaScript Developers

Feeling like boosting up your career? In this section, you'll find free JavaScript courses, tutorials, and coding lessons to help you stay up-to-date with the latest developments in the JS ecosystem and take you from basic to advanced. Dive into it, and you'll find out that the world's most popular programming language is easy to learn.

Welcome to the JavaScript Learning Portal! Here you will find a variety of talks, workshops, tutorials and presentations about JavaScript. Whether youre a beginner looking to learn the basics or an experienced developer looking to stay up-to-date on the latest trends in the language, this portal has something for everyone. We have organized our content into different categories so you can easily find what you need. Explore our selection of talks, workshops, tutorials and presentations today and start learning more about JavaScript!

JavaScript Talks, Workshops, Tutorials & Presentations - Learn JavaScript from the Experts!

Code quality is a measure of how well written, organized, and maintainable a piece of code is. It is important for any programming language, but especially so for JavaScript due to its dynamic nature. Good code quality means that the code is easy to read and understand, has good structure and organization, and is easy to modify or extend. It also means that the code is secure, efficient, and performs as expected. In short, it is the practice of writing code that is clean, efficient, and bug-free.

The page contains talks, workshops, tutorials and presentations about code quality. Our content is designed to help JavaScript developers improve their coding skills, understand the importance of code quality, and develop better coding practices. We provide a range of resources to help developers learn how to write clean, efficient code that meets industry standards. Whether youre just starting out or are an experienced coder, our content will help you level-up your coding game.