ASP.net MVC framework and caching and executing javascript

First of all, excuse my terminology as I'm not an ASP.net MVC framework developer. My company is using an ASP.net MVC 5 framework. I'm developing the analytics code using Adobe DTM for this new framework. The issue I'm having is I recently worked on an Angular/Node.js implementation where my JavaScript files were only loaded initially and then ran on every view without being reloaded allowing me to keep track of states etc. I'm now working at a new company and they are using a ASP.net MVC 5 framework, but the JavaScripts are being reloaded every view. From what the developers are telling me, it is a hybrid where some pages use a controller and other pages don't. Is there a way to load JavaScript one time (initial load) and keep the JavaScript running (not destroying objects/variables)?

Thanks!