JavaScript (JS) is a programming language that conforms to the ECMAScript specification. It is high-level, often just-in-time compiled, and multi-paradigm. It has curly-bracket syntax, dynamic typing, prototype-based object orientation, and first-class functions. JavaScript is commonly used for creating web pages. It allows us to add dynamic behaviour to the webpage and add special effects to the webpage. On websites, it is mainly used for validation purposes. JavaScript helps us to execute complex actions and also enables the interaction of websites with visitors. Formatting to JavaScript is done through Spacing and indentation which should be consistent throughout your code. Many developers choose to use 4-space or 2-space indentation. In JavaScript, each nested statement (e.g., a statement following a '{' brace) should be indented exactly once more than the previous line's indentation.)