Courses
1393 hands-on courses across every major language, framework, and discipline.
Building with Jest
Build real applications with Jest: the patterns, ecosystem, and techniques used in production.
Advanced Jest
Master Jest at scale: performance, architecture, advanced features, and production hardening.
Jest Projects
Ship complete projects with Jest and build a portfolio that demonstrates real Jest skill.
Objective-C Foundations
Start Objective-C from zero. Set up your environment, learn the core syntax, and write your first working programs with confidence.
Core Objective-C
Go beyond the basics of Objective-C: data types, collections, error handling, and the standard library you reach for every day.
Intermediate Objective-C
Level up your Objective-C. Write idiomatic, well-structured code and solve real problems with the right tools and patterns.
Advanced Objective-C
Master advanced Objective-C: deep language features, metaprogramming, internals, and the techniques senior engineers rely on.
Object-Oriented Programming in Objective-C
Design with objects in Objective-C: classes, inheritance, composition, and SOLID principles for maintainable systems.
Functional Programming in Objective-C
Apply functional techniques in Objective-C: pure functions, immutability, higher-order functions, and composition.
Concurrency & Parallelism in Objective-C
Write fast, correct concurrent Objective-C: threads, async, synchronization, and avoiding race conditions and deadlocks.
Testing & TDD in Objective-C
Ship reliable Objective-C: unit and integration tests, mocking, and test-driven development workflows.
Data Structures & Algorithms in Objective-C
Implement and apply the essential data structures and algorithms in Objective-C, with complexity analysis and interview-style problems.
Design Patterns in Objective-C
Apply battle-tested design patterns in Objective-C to write flexible, maintainable, and extensible software.
High-Performance Objective-C
Make Objective-C fast: profiling, memory, algorithmic improvements, and the optimization techniques that matter in production.
Objective-C by Building Projects
Learn Objective-C by shipping real projects. Each one adds a new skill and something concrete to your portfolio.
Objective-C Technical Interview Prep
Prepare for Objective-C interviews: language deep-dives, common questions, coding challenges, and how to stand out.
Idiomatic Objective-C & Best Practices
Write Objective-C the way experts do: idioms, conventions, anti-patterns to avoid, and production-grade best practices.
Assembly Foundations
Start Assembly from zero. Set up your environment, learn the core syntax, and write your first working programs with confidence.
Core Assembly
Go beyond the basics of Assembly: data types, collections, error handling, and the standard library you reach for every day.
Intermediate Assembly
Level up your Assembly. Write idiomatic, well-structured code and solve real problems with the right tools and patterns.
Advanced Assembly
Master advanced Assembly: deep language features, metaprogramming, internals, and the techniques senior engineers rely on.
Memory & Systems Programming in Assembly
Work close to the metal in Assembly: memory management, pointers, layout, and writing efficient systems code.
Concurrency & Parallelism in Assembly
Write fast, correct concurrent Assembly: threads, async, synchronization, and avoiding race conditions and deadlocks.
High-Performance Assembly
Make Assembly fast: profiling, memory, algorithmic improvements, and the optimization techniques that matter in production.