Dive deep into the core concepts of JavaScript with this comprehensive 7-hour video course. Explore how JavaScript works behind the scenes inside the engine, covering topics such as execution context, hoisting, scope, closures, and the event loop. Learn about advanced concepts like prototypal inheritance, promises, and functional programming. Gain insights into JavaScript internals to become a better developer and prepare for frontend and web developer interviews. Follow the structured playlist, covering everything from the shortest JS program to higher-order functions, map, filter, and reduce. Understand complex topics like temporal dead zones, block scope, and shadowing. Discover the intricacies of asynchronous JavaScript and the V8 engine architecture. Master callback functions, first-class functions, and closures through practical examples and interview questions.