Explore Apache FlexJS web application development using Visual Studio Code in this 34-minute tutorial. Set up a development environment, install necessary tools, create a new project, build it, and debug the running application in your web browser. Learn about the history of FlexJS, Visual Studio Code's features, and how to create project configuration files, including task.json and launch.json. Discover browser options, source maps, and debugging techniques. Gain insights from Josh Tynjala, an experienced web application developer and contributor to Apache FlexJS compilers, who created a Visual Studio Code extension for ActionScript and MXML languages.