Latest Tutorials

In this article, we will create a data visualization that displays the frequency of words in the lyrics of a song under the Billboard Hot 100 list, Vampire, by Olivia Rodrigo, using D3 and Svelte. Which words do you think catapult a song to the Billboard Hot 100 list?

Hey there, newline students! We've been working hard behind the scenes to improve your learning experience, and we're excited to share some awesome updates to our Tutorial and Course pages. With this update, we are introducing: We're just getting started with website web enhancements, all focused…

The useCallback hook returns a memoized callback that only changes if one of the dependencies has changed. This helps us to avoid unwanted and unnecessary components re-renders. The basic syntax for the useCallback hook is: You don't need any additional typings since TypeScript knows that…

The main problem with fetch function is that it isn't a generic function. This makes it harder to type response data without writing additional wrappers. We can create a wrapper-module to avoid this problem. Let's create a function request that will handle network requests:

In this article, we will learn how to use the urql authExchange to add authentication with a GraphQL API in a Next.js app.