Hi, I'm Witek

Learn about asynchronous programming in JavaScript with async and await! Discover how to effectively use these features to code better and faster.

keyof in TypeScript returns a list of an object’s keys as a type, allowing reference to the object’s properties. typeof, on the other hand, creates a type based on an existing variable, facilitating dynamic type assignments.

The rest and spread operators in JavaScript simplify working with arrays and objects. Spread allows elements to be expanded, while rest gathers multiple arguments into a single parameter, enhancing code flexibility and readability.

Clean code is the foundation of readable and maintainable applications. Learn how to write code that will be understandable for others (and for yourself in the future!), avoid errors, and discover proven practices that will help you create solid and neat solutions.

Have you ever wondered why the version control system we use every day is called "Git"? Discover the story behind the name, learn what it means, and uncover some interesting facts behind one of the most popular tools in programming.

A Promise in JavaScript is a way to manage asynchronous operations, such as fetching data from a server. Check out how to use promises to handle results, errors, and improve your code with async/await.

Webhooks are a key element of APIs, enabling applications to communicate in real-time. Learn how to leverage webhooks in your business.

Closures in JavaScript are a key mechanism that allows "closing" over variables. Learn how to use them in practice.