kefir event listener question

kefir dom stream

// domStreams
var K = require("kefir")
  , exported = {}
  , evts = ["click", "mouseenter", "mousemove", "mouseexit"];

evts.forEach((eventKey, i, arr) => {
  exported[eventKey] = (elem) => {
    return K.fromEvent(elem, eventKey);
  };
});

// UI
var rootNode = document.querySelector("#foo")
  , mousemoveStream = domStreams.mousemove(rootNode)
  , hits = 0;

mousemoveStream.onValue(() => {
  hits++;
  console.log("still firing the on value method");
  if (hits === 100) {
    console.log("removing the value output");
    mousemoveStream.off(); // should end messages?
  };
});

updated:

var rootNode = createElement(tree)
    , mousemoveStream = domStreams.mousemove(rootNode)
    , hits = 0
    , handler = () => {
        hits++;
        console.log("handling that event");
        if (hits > 10) {
            mousemoveStream.offValue(handler);
        }
    };

  mousemoveStream.onValue(handler);