Get function associated with setTimeout or setInterval

Question

Let\'s assume that I have the timeout ID returned from setTimeout or setInterval.

Can I get, in some way, the original function or code, as

Answer 1

var timeouts = {};  // hold the data
function makeTimeout (func, interval) {

    var run = function(){
        timeouts[id] = undefined;
        func();
    }

    var id = window.setTimeout(run, interval);
    timeouts[id] = func;

    return id;
}
function removeTimeout (id) {
    window.clearTimeout(id);
    timeouts[id]=undefined;
}
function doTimeoutEarly (id) {
  func = timeouts[id];
  removeTimeout(id);
  func();
}

var theId = makeTimeout( function(){ alert("here"); }, 10000);
console.log((timeouts[theId] || "").toString());
timeouts[theId](); // run function immediately, will still run with timer