Note that you import the non-default useState function along with React itself (or use React.useState()). ... JavaScript promises: 4 gotchas and how to avoid them. Jun 4, 2025 8 mins.

Learn the key concepts behind React and how to use JSX elements and components to build lean and fast web front ends React, also known as ReactJS, is an open source JavaScript library for building ...

During our live discussion on how to Power SEO Friendly Markup With HTML5, CSS3, And Javascript earlier this year, we spent a good deal of time talking about React. I’m going to dig into the ...

In particular, Google is championing a new style of mobile apps called progressive web apps (PWAs), which provide mobile app-like experiences through a mobile web browser.This includes capabilities ...

Rick Hanlon, a frontend engineer on React core at Meta and Jest core contributor, notes in a blogpost that Jest is the most used testing framework in the JavaScript ecosystem. It's used by ...