3、Single page web application(SPA) -- very confusing file structure We normally use a technical perspective to classify files, components, actions, reducers, mi

3、Single page web application(SPA) -- very confusing file structure We normally use a technical perspective to classify files, components, actions, reducers, middleware. Whereas the business developer is usually responsible for developing a module. If the files are scattered everywhere, the maintenance complexity is increased, and developers need to debug to determine if all the code on the website is correct.