Simplify listAux

[nixnax]

Romain, this amazing piece of code absolutely freezes my brain!

Is there any way to break down the complexity a bit, such as getting rid of the function in a function in a function in a function?

if(i<taskNameList.length) setImmediate(function(){achieve(taskNameList[i][1],username(function(taskNameList,i,username,done) {
return function() {
        setImmediate(function(){listAux(taskNameList,i+1,username,done);});
    };
})(taskNameList,i,username,done))});

[rom1504]

could be