Explore the evolution of JavaScript and its modern applications in complex single-page apps through this 21-minute conference talk by Torsten Stüber, Co-Founder & CTO of Ohlala. Dive into the power of TypeScript and Redux for solving challenges in frontend development, using Ohlala's platform for paid dates as a case study. Learn about hierarchical components, React in production, Flux implementations, and the concept of a single source of truth. Discover how to structure stores, implement readonly states, and handle Ajax calls efficiently. Gain insights into WebAssembly, push notifications, and SQL database indexing for scalable web applications.