JavaScript (JS) is a programming language that is primarily used to create interactive and dynamic web pages. It is a client-side scripting language, which means that the code is executed by the user's web browser, rather than on a server.
JavaScript can be used to create a wide range of features and functionality on a website, such as
Creating interactive forms and buttons
Validating user input
Creating animations and transitions
Manipulating the Document Object Model (DOM) to change the structure and content of a web page
Creating dynamic, interactive maps, charts, and other visualizations
Creating web applications and single-page applications (SPAs)
JavaScript can also be used in other environments outside the browser, such as
In the server side with Node.js
In the desktop app with electron
In the mobile app with React-native
In the Internet of things (IoT)
In the smart tv app
In the game development
As you can see, JavaScript has a wide range of applications and it is an essential tool for web development. JavaScript is also widely used in other areas such as web scraping, automation, and more.
Overall, JavaScript is a versatile and powerful language that is widely used to create interactive and dynamic web pages and applications, and it's being used in many areas and environments.