Introduction of JavaScript ?
JavaScript is a high-level scripting language used for implementing complex features on web pages. It allows developers to create dynamically updating content, control multimedia, animate images, and perform a wide range of other tasks. JavaScript runs in web browsers and is essential for many interactive web applications. Node.js is a cross-platform, open-source back-end JavaScript runtime environment. It enables developers to execute JavaScript code outside of a web browser, which makes it useful for writing command-line tools and server-side scripting. Node.js promotes a "JavaScript everywhere" paradigm, making it possible to use the same programming language for both client-side and server-side scripting. To write and run JavaScript code, you can use an online coding platform such as Replit. In JavaScript, variables are used to store and manipulate data. They can be declared using the var keyword, followed by the variable name and an optional initial value. Multiple varia...