1# Directory Structure 2 3 4The following figure shows the typical directory structure of the **ets** module (in **entry/src/main**) for an application with feature abilities (FAs). 5 6 7 8 9 10The **ets** directory contains the following files: 11 12 13**.ets** files: Extended TypeScript (eTS) files that describe the UI layouts, styles, event interactions, and page logics. 14 15Functions of the folders and files are as follows: 16 17- The **app.ets** file manages global application logics and lifecycles. 18 19- The **pages** directory stores all pages. 20 21- The **common** directory stores common code files, such as files of custom components and public methods. 22 23 24> **NOTE** 25> 26> - For details about the **resources** directory in **src/main**, see [Resource File Categories](ui-ts-basic-resource-file-categories.md). 27> - TypeScript and JavaScript files can be imported as page files. 28 29"js" tag configuration: 30 31Configure the **"js"** tag in the configuration file of your application. The **"js"** tag contains the instance name, page route, and window configuration information. 32 33 34> **NOTE** 35> 36> For details about the **"js"** tag in the FA model, see [Table 22 Internal structure of the js attribute](../quick-start/package-structure.md#internal-structure-of-the-js-attribute). 37> 38
