A small library of functions to build simple programs that read user input from the DOM and output a string to the DOM. The API is scoped for building I/O programs that listen to a form change then read strings, numbers or booleans and display a formatted string in a <pre> tag. There is no support for DOM manipulation or dynamically modifying styles.

This tight scope allows you to focus on the relationship between program inputs and outputs, types, and debugging without getting lost in the syntax or complexity of a full DOM-based web page.

• documentation for the 5 library functions
• an example of the programs you can build