Witek
5 min
What Is 'use strict' in JavaScript? 馃
Learn what "use strict" is in JavaScript. Strict mode enhances code quality by eliminating common errors and simplifying development.
JavaScript
12 Posts
JavaScript is a versatile language used for both frontend and backend development. Discover tutorials, tips, and updates to enhance your skills and keep up with the latest trends in the JS ecosystem.
Witek
5 min
What Is JavaScript language?
JavaScript is a versatile programming language used to create dynamic and interactive websites and applications in browsers and on servers.
Witek
4 min
What Is the Event Loop in JavaScript?
Learn what the event loop is in JavaScript! Discover the key to asynchronous behavior in single-threaded JavaScript.
Witek
5 min
What is async/await in JavaScript?
Learn about asynchronous programming in JavaScript with async and await! Discover how to effectively use these features to code better and faster.
Witek
4 min
What is the Spread and Rest Operator in JavaScript?
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 par...
Witek
6 min
What is a Promise?
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 c...
Witek
6 min
What are Closures in JavaScript?
Closures in JavaScript are a key mechanism that allows "closing" over variables. Learn how to use them in practice.
Witek
5 min
Asynchronous JavaScript
Discover asynchronous programming in JavaScript! Learn how promises work and why they are crucial for building efficient web applications. Check out our tutorial!
Witek
8 min
What is this in JavaScript?馃
Understanding this in JavaScript is the next step in your career. Learn how it works in functions, constructors and arrow functions, and how the context of the call changes.
Witek
4 min
Arrow Functions In JavaScript
Discover arrow functions in JavaScript! Learn how to use them, their advantages and disadvantages, and see practical examples of their usage.
Witek
5 min
Fetching Data from an API in JavaScript - How to Use Fetch API
Learn how to fetch data from an API in JavaScript using the Fetch method. Master making server requests and boost your programming skills!
Witek
6 min
Map and Set in JavaScript
Learn how to use maps and sets in JavaScript to write more efficient code