JavaScript (often just JS) is a lightweight, interpreted, or JIT-compiled, object-oriented language with first-class features. It is most widely used as a scripting language for web pages but is also used in other software products such as CoucApache hDB or Node.js.

JavaScript is a prototype-oriented, dynamically typed multi-paradigm language that supports object-oriented, imperative, and declarative programming styles.

JavaScript should not be confused with the Java programming language. Java and JavaScript are trademarks or registered trademarks of Oracle in the United States and other countries. However, these two languages ​​have different semantics, syntax, and application.

JavaScript makes it possible to implement complex web page behavior. Every time you see a web page, it not only displays static content but also does more – displays content updates in a timely manner, displays interactive maps, 2D / 3D animations, scrolls videos, etc. 

JavaScript is considered to be more difficult to learn than related technologies like HTML and CSS. Therefore, before learning JavaScript, it is strongly recommended to get familiar with these two technologies.

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