[Pas2js] sequencing function calls in pas2js

[warleyalex]

I read through various threads and it really escapes me how to accomplish the
following in pas2js:
-------------------------------
setTimeout(function()  {
 console.log('hi after 10 secs')
 setTimeout(function()  {
   console.log('hi after 5 more secs')
   setTimeout(function()  {
     console.log('hi after 2 more secs')
   }, 2000)
 }, 5000)
}, 10000)   
-------------------------------------------------------
wait      10 sec  then print the msg "hi, after 10 secs"
wait more 5 sec then print the msg "hi after 5 more secs"
wait more 2 sec then print the msg "hi after 2 more secs"
-------------------------------------------------------

My working solution now looks like this:
==========================================
  procedure ProcessMessage;
      function _doTask0(aResponse: JSValue): JSValue;
      begin
        result := wait(10000);
      end;

      function _doTask1(aResponse: JSValue): JSValue;
      begin
        console.log('hi, after 10 secs');
        result := wait(5000);
      end;

      function _doTask2(aResponse: JSValue): JSValue;
      begin
        console.log('hi after 5 more secs');
        result := wait(2000);
      end;

      function _doTask3(aResponse: JSValue): JSValue;
      begin
        console.log('hi after 2 more secs');
        result := wait(0);
      end;

     begin
      queue
        .&then(@_doTask0)
        .&then(@_doTask1)
        .&then(@_doTask2)
        .&then(@_doTask3);

    end;
==================================================

I ended up to implement the "queue" promise function. Indeed, I just define
a simple external variable:
  var queue: JPromise; external name 'Promise.resolve()';

I use this "queue" method (to chaining methods) a lot, I consider the code
readable and maintainable, but I think it could be highly flexible,
something like ("pass additional parameters to then chain").

I read through various pascal threads, but it really escapes me how to
accomplish this in pas2js world, the following:

      queue
        .&then( @_doTask0('10000') )
        .&then (@_doTask1('5000') )
        .&then( @_doTask2('2000') )
        .&then( @_doTask3('0') );

I tried to figure out how to pass directly a function name with a argument
to another function but I am getting lost :( The method would be highly
flexible if pointer could accept arguments. 

______________________________
OBS: In JS world, we can use Function.prototype.bind to create a new
function with a value passed to its first argument, like this

.then(_doTask0.bind(null, '10000'))
.then(_doTask1.bind(null, '5000'))
.then(_doTask2.bind(null, '2000'))
.then(_doTask3.bind(null, '0'));
______________________________

Isn't there some simple way to do this?



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