Async control flow "library"

Hmm. Well, it won't like having lots of recursion... setTimeout is a great way to avoid it though. The code looks way more complicated than is really needed to do what's required - really, what you're trying to do should work fine in Espruino - it just seems that the async library does some crazy stuff.

For instance unless I'm misunderstanding, what you're doing could actually be handled using:

function series(arr,done) {
  var i=0;
  function next(err) {
    if (((err!==undefined) && (err!==null)) || i>=arr.length)
      done(err);
    else
      arr[i++](next);
  }
  next();
}

(although obviously that would quickly exhaust the stack - although it could be changed to use setTimeout pretty easily)

The actual bugs with Espruino seem to be:

• function(){} returns false when cast to a boolean (it should return true)
  
• no Array.concat
  
• You can't reference built-in functions (this is a big one that I'm planning to fix - but it requires a lot of work)
  
  

I'll see if I can fix the first 2 for 1v59 - the other one's going to need a bit more work :)

By the way, for (... in ...) works correctly AFAIK. This is the result from jsconsole:

for (var i in ["a","b","c"]) console.log(i)link
"0"
"1"
"2"

Which is what Espruino does.