📄️ Stacks overview
Stacks are a new feature for building impact services in Turn. Stacks are heavily inspired by the original ideas in Hypercard and Hypertalk.
📄️ Functions
Within cards you will make use of functions and expressions to describe the logic of your impact service.
📄️ Expressions
Expression is an expression language which consists of the functions provided by Excel with a few additions.
📄️ Expressions Reference
abs(number)
📄️ Stacks Results
Some responses captured while users interact with stacks can be stored for analysis with the write_result() function.
📄️ Stacks API Integrations
Stacks can integrate with APIs exposed over HTTP.