How is the jumpTo method in the initialize method of BaseController introduced when verifying login?

Question

How is the jumpTo method in the initialize method of BaseController introduced? Why not found?

Answer 1

jumpTo This should be a function, and the method is $this-> to access it like this. Directly jumpTo() is a function, you can find it in the custom function library.

Or use the editor's global search to search for the name of this function.