Cognitive stress has always been a challenge when dealing with new languages, features and APIs. Oftentimes, we find ourselves experimenting with new features, rather than only reading their documentation. Either with a debugger, a REPL environment, or a thousand console.logs, we explore what these tools do. But what if there was something that will further cut the time between writing code and seeing the result? JS Eval is a tool that achieves exactly this by displaying the evaluation results of your program directly where they come from. Join me as we dive into its plethora of features and how they can help you understand the new tools you encounter!

Modern JavaScript applications often pass automated accessibility checks with flying colors. Tools like Lighthouse, Axe, and CI pipelines give us green reports, and we feel confident shipping.

But what happens when real users interact with the application?
In this talk, we’ll explore why automated accessibility testing only catches a fraction of real issues. Through a live demo of a seemingly “accessible” JavaScript form (we will see on the Lighthouse and Axe DevTool no accessibility issues), we’ll uncover hidden problems that automated tools completely miss, such as broken keyboard navigation, silent dynamic UI updates, and modal dialogs that behave correctly visually but fail real users.

You’ll learn why accessibility is not just about passing automated checks, but about understanding how people actually interact with your JavaScript applications.

This session will include a live demo, practical examples, and concrete takeaways developers can apply immediately.