You can use Developer Studio to create and modify Jaggery projects and files. To get started, create a Jaggery project by clicking the Jaggery Project link on the Developer Studio dashboard or by choosing File > New > Project and then selecting Jaggery Project from the Jaggery folder inside the WSO2 folder.
You can create a new project with empty stub files, or create the project based on existing source files by specifying the directory where they are located. You can also specify whether you want to separate your public resources from your source folder and can set default folder names for future projects. If you want to include support for plain JavaScript in this project, select the check box.
...
When you press Ctrl + Space in the Jaggery editor, code the code assistance feature is provided for its predefined Modules, Variables, Objects and basic code statements with a brief code assistance doc.
For example, code completion for a Jaggery Object, and accessing the operations of the object are shown below.
...