Thinking at the function level. Instead of thinking: view, controller, Service , database . I write a function that does what I’m trying to accomplish, like i

Thinking at the function level. Instead of thinking: view, controller, Service , database . I write a function that does what I’m trying to accomplish, like image upload. It’s a small part that can be reused in some bigger system. Then make it work with a few constraints: file size, file type. I also hardcode stuff