JavaScript

It is a programming language that is compliant with the ECMAScript standard. JavaScript, which is commonly shortened as JS, is one such language. A high-level scripting language that is frequently just-in-time compiled and multi-paradigm, JavaScript is a popular choice. This language has curly-bracket syntax, data types, prototype-based object-oriented programming, and first-class functions.

JavaScript, along with HTML and CSS, is considered to be one of the foundational technologies of the Internet. For web page behaviour, it is used by over 97 percent of websites on the client side, with many of them integrating third-party libraries. To run the code on the user's device, most web browsers include a specialised JavaScript engine.

JavaScript is a multi-paradigm programming language that supports event-driven, functional, and imperative programming approaches. It includes application programming interfaces (APIs) for dealing with text, dates, regular expressions, standard data structures, and the Document Object Model (DOM).

It is not possible to use the ECMAScript standard without any input/output (I/O) capabilities such as networking, storage, or graphics. In reality, JavaScript APIs for I/O are provided by the web browser or other runtime system, depending on the situation.

Although JavaScript engines were initially used only in web browsers, they now are essential parts of a wide range of other software systems, most notably servers and a wide range of other applications.

Although there are some similarities between JavaScript and Java, such as the names of the languages, syntax, and the corresponding standard libraries, the two languages are unique and have very different designs.