Vue JS is a Javascript library that has been gaining traction in recent years and can be used to build a variety of web applications. Despite its advantages, Vue JS is not as popular as other frameworks such as React and Angular. There are a few reasons why Vue JS is not as widely used, including lack of support from big companies, lack of resources available for developers, lack of corporate partnerships, and lack of maturity. Although Vue is still relatively young compared to its competitors, it is still a powerful framework that can create amazing web applications. As Vue continues to mature, it is likely that its popularity will increase.