JavaScript, (JS), is a dynamic, prototype-based programming language. It first appeared 22 years ago. JS is multi-paradigm, subject-oriented, and event-driven. It is one of the basic technologies in WWW along with CSS and HTML. Most websites use it because it makes it possible to create interactive pages. JS has an API for functioning well with basic manipulation of the DOM, text, dates, and arrays. The language, however, does not include any I/O. It depends on its environment. When it first came into use, JavaScript could only implement client-side in a web browser. However, it is now embedded in server-side, non-web programs, and other types of host softwares. It can write desktop and mobile applications. JS is often confused with Java. The two languages are, however, very distinct from each other. Their designs are different. The making of JS was inspired by programming languages like Scheme and Self and not Java.

JavaScript is supported by all of the modern web browsers which have built-in interpreters. It supports most of the structured programming syntax from C. (C stands for a general-purpose programming language.) It has both block and function scoping. Typing is dynamic. A type system in programming language stands for a set of rules which assign a type to variables, functions, modules, and other constructs. Type represents a value and not just a single expression. JS has an eval function which executes statements as strings at run-time.

Using HTML t is possible to come up with a website. However, it may be impossible to go about with logistics such as clicking or dragging over. Without JS, you would have a site that is purely for informational purposes. You won’t have any interactive features such as the image slider. Such a website is known as a static website. Our static site may have a beautiful design and plenty of relevant information. However, it is not dynamic.

JavaScript is object-based and lightweight. It is translated ad not compiled. JavaScript Translator translates JavaScript code which is then embedded in web browsers. It is case sensitive, and every statement must end with a semicolon sign (;). One of the most popular features of JS is the ability to come up with new functions within scripts

The uses of JS include; client-side validation, displaying the clocks and dates on your page, creating dynamic drop-down menus, opening or closing new windows or frames, and altering the look of HTML documents. JS helps to write HTML into separate windows dynamically. It makes it possible to manipulate HTML layers. You can move or hide them.

JS is simple to learn and use. You do not need the help of an expert. It works well with other programming languages. You can insert JS into any web page despite its file extension. You can use it in scripts that use other languages, and it will function just fine. It is client-side, so the server load is reduced. It has third party add-ons improve its functionality.

Despite its popularity and functioning, JS has a few limitations. It lacks multiprocessor and multithreading abilities. It is not possible to use JS for networking applications because it does not provide that support. Client-sided JS makes it impossible to read or write files. Despite these limitations, JavaScript remains a popular and reliable programming language. Its abilities far outweigh the limitations.