A career in JavaScript is the pursuit of a professional path focused on developing, designing, and maintaining websites, applications, and programs using the JavaScript programming language. It involves writing code that is optimized for web browsers and other platforms, understanding client requirements, and creating user-friendly designs. In addition to coding, a career in JavaScript may also involve troubleshooting existing code, testing, debugging, and deploying software solutions. The skillset required for this type of career includes knowledge of HTML, CSS, and other scripting languages, as well as problem-solving and analytical thinking.