Vue.js is a progressive framework of JavaScript used to create Dynamic User Interfaces and single-page applications.

For an interview question asking about Vue.js, a correct answer could be:

“Vue.js is a progressive JavaScript framework used for building user interfaces. It’s designed to be incrementally adoptable, meaning that it can be easily integrated into existing projects. Vue.js focuses on the view layer of web applications, providing developers with the tools to create dynamic and interactive user interfaces efficiently. It’s known for its simplicity, flexibility, and performance, making it a popular choice for building modern web applications.”