JavaScript has maintained its popularity in application development for more than 25 years. However, this programming language hasn?t outlived its usefulness even after all that time. Instead, JavaScript has become the Internet?s de facto programming language. While its early adoption in website development helped establish it, JavaScript also offers the general advantages of being open source and providing standardization. Two of the most common JavaScript libraries are Node.js and React.js. The main difference is that Node.js is a back-end framework, and React is used for developing user interfaces (UI). Let?s discuss each one?s benefits and how they can affect your software development project.