JavaScript is a platform-independent,event-driven, interpreted client-side scripting andprogramming language developed by Netscape Communications Corp. and Sun Microsystems.

For a web development interview question asking, “What is JavaScript?” the correct answer would be:

JavaScript is a high-level, interpreted programming language primarily used to add interactivity and dynamic behavior to web pages. Originally developed by Brendan Eich at Netscape in 1995, it has since become one of the core technologies of web development. JavaScript allows developers to manipulate webpage content, control multimedia, animate elements, validate forms, create cookies, and much more. It is supported by all modern web browsers and can be used both on the client-side (in the browser) and server-side (with frameworks like Node.js). JavaScript is often used in conjunction with HTML and CSS to create rich and interactive web experiences.