👉 Upperer is a type of software development process, commonly used in the field of web development. It involves the use of an "upper layer" that provides more advanced features and functionality to the client's application, such as Ajax, server-side scripting, and responsive design. In this context, an upperer refers to any layer of a software system beyond the low-level core components. This can include frameworks like React, Angular, Vue.js, or other libraries developed by developers for web development, which