javascript - angular browser jump problem

Question

I have five pages login A.html, home page B.html, cotyledon C.html, cotyledon D.html, cotyledon F.html. I used route to make jump setting interfaces, which are A, B, C, D, E. How to restrict the browser address that has not been logged in and cannot jump to other pages but can only jump to login A.

Answer 1

https://alligator.io/angular/...
Use routing guard CanActivate for permission verification