- Can your app scale?
- If you remove one of the modules/features in your webpage is it going to break?
- Do you have reusable components/features in your solution?
- Are your app parts tightly coupled?
- Are your modules/features testable?
- What is happening when a module/feature is in error state?
- And more
If you answered those questions that might imply that there is a front-end architecture in your solution. If you can’t answer those questions then you might have problems in your solution.