Extjs as an RIA(Rich Internet Applications) framework, it provides support for MVVM pattern based on the MVC pattern. This paper introduces the work principle of front-end MVVM and MVC design under the framework of Extjs and their respective advantages and disadvantages in detail, and applies Extjs framework based on MVVM design to front- end user interface development. Through the successful practice in the design of the user interface of the nursing information system, this paper put forward a programmi...
