They seem similar to goto to me. With goto, the trigger specifies what to do. That's what command and commandfor do.
With comefrom, what to do specifies the trigger. That seems similar to the existing document.addEventListener() in Javascript.
They seem similar to goto to me. With goto, the trigger specifies what to do. That's what command and commandfor do.
With comefrom, what to do specifies the trigger. That seems similar to the existing document.addEventListener() in Javascript.