Use for questions about Arcade expression language used across ArcGIS Platform
Arcade is an expression language that can be used across the ArcGIS Platform. Whether writing simple scripts to control how features are rendered, or expressions to control label text, Arcade provides a simple scripting syntax to deliver these capabilities.
Arcade scripts are portable. This means that scripts you author in ArcGIS Pro can be read and executed in a WebMap through a browser, or in a Mobile Application.