Explore the state of JavaScript development tools in 2011 through this JSConf EU talk. Delve into various aspects of JavaScript tooling, including Xion, expressions, error handling, token streams, and variable declarations. Learn about type inference, navigation, pragmas, macros, and minification techniques. Discover the concept of Z undoes and examine other tools like fixed hoisting, branching tools, and realtime profilers. Gain insights into the challenges and opportunities in JavaScript tooling as presented by Peter van der Zee at JSConf EU 2011.