Implement replies functionality for comments in a web application using ASP.NET Core, C#, Nuxt.js, and Vue.js. Learn how to handle reactivity caveats in Vue.js, including adding new properties to objects and items to arrays via index. Explore the implementation process step-by-step, covering both backend and frontend development. Gain insights into building a robust commenting system with nested replies, enhancing user interaction in your web application. Discover best practices for integrating ASP.NET Core with modern JavaScript frameworks like Nuxt.js and Vue.js.