Handling events in Prolog

This demo illustrates event handling using the Tau-Prolog compatible library(dom). We show two versions, one using exclusively the Tau-Prolog module and one using SWI-Prolog's general calling to JavaScript.

If you click the buttons, the label of the clicked button is changed.

Using Tau-Prolog library(dom)

This version uses Tau-Prolog library(dom) library to manipulate the DOM and bind the event handling.

Using SWI-Prolog's JavaScript binding

This versions uses SWI-Prolog's general JavaScript interface for manipulating the DOM. Note that bind/4 is part of the low level library(wasm). In addition, library(wasm) provides bind_async/4 which makes the event-handler create a new asynchronous task.