Master modern JavaScript from closures and the event loop to ES2024 features, design patterns, TypeScript, and everything you need to ace technical assessments.
1-month free Pro trial included
Understand how JavaScript really works: execution contexts, call stack, scope chain, closures, and the module pattern
How JavaScript handles concurrency: the event loop, task queues, Promises, async/await, and generators
Destructuring, spread/rest, optional chaining, nullish coalescing, symbols, iterators, and all modern JS features
Module, Observer, Factory, Singleton, Decorator, and other patterns in modern JavaScript
TypeScript fundamentals for JavaScript developers — types, interfaces, generics, utility types, and real-world patterns
Tricky questions, common gotchas, coercion rules, and everything you need to ace JavaScript assessments
