A Different Vue into Web Performance

Vue.js Live Conference

Vue.js London Live 2021

Abhijeet Prasad

React Summit US

React Summit US 2023

React Summit US 2024

The Performance Impact of Generated JavaScript

JSNation US

JSNation US 2024

React Summit US 2025

React Advanced

React Advanced 2026

How many times have you had to tell Claude Code to stop reaching for useEffect?React’s flexibility is a strength for developers, but it often leads AI tools in the wrong direction, introducing subtle bugs and drifting away from production-ready code without clear guidance.In this talk, Abhijeet Prasad, maintainer of Braintrust’s AI observability SDKs, shares practical ways to keep your agents on track and writing production-ready React. You will start with simple guardrails and skills that shape better behaviour, then move toward a more powerful setup: an eval pipeline that continuously improves your agents by driving updates to lint rules, skills, and agent instructions.

Teaching AI to Write Production-Ready React

When was the last time you peeked inside the dist folder to inspect the JavaScript generated by your framework or bundler? The reality of modern JavaScript development with it's reliance of bundlers, frameworks and compilers is that the JavaScript you write is not the same as the JavaScript that runs on your browser. Tools like TypeScript and compilers like Babel allow you to support a variety of older browsers, environments, and runtimes while writing modern, maintainable code, but it can be hard to tell what is going on in that final bundle. It's crucial to understand and optimize the generated JavaScript produced during your build process so that you maximize performance. Join Abhijeet Prasad, maintainer of Sentry's open source error and performance monitoring JavaScript SDKs as he walks through the performance and bundle size implications of generated JavaScript and techniques you can use to optimize it. He'll walk through transpilation nuances, tree-shaking, minification, and loading strategies so you can understand how to deliver better experiences for your users.

Solving your front-end performance problems can be hard, but identifying where you have performance problems in the first place can be even harder. In this workshop, Abhijeet Prasad, software engineer at Sentry.io, dives deep into UX research, browser performance APIs, and developer tools to help show you the reasons why your Vue applications may be slow. He'll help answer questions like, "What does it mean to have a fast website?" and "How do I know if my performance problem is really a problem?". By walking through different example apps, you'll be able to learn how to use and leverage core web vitals, navigation-timing APIs, and distributed tracing to better understand your performance problems. <a href="https://www.froala.com/wysiwyg-editor?pb=1"> </a>