You can write code to manipulate the page/form HTML5 DOM and access objects and invoke methods and functions that are part of the standard Web API implemented by the browser.
Open Source/Proprietary Libraries
Zingy allows you to reference open-source, 3rd party and proprietary libraries/scripts in your app's pages and forms. This can be done at the app-level (where all pages and forms reference the library) or at the page-level.
You can access objects, call functions/methods from these libraries using the Custom Code block.
Page Flow Variables and Functions
The variables and functions that are added to Page Flow (using blocks) can also be referenced by the code within the Custom Code block.
NOTE: For code safety and efficiency, variables and functions declared inside the Custom Code block are not visible outside the block.