Question

So I have such code that simulates function line (fn1, delay, fn2, delay, … fnN – calls a function, removes it from line sleeps a bit and so on).

I have faced strange problem – I see no delay. Why, what is wrong with my code?

Answer 1

Your first problem is that you are calling append immediately, rather than passing a function which will call append.

openWindowDelayedPool.add($('.container').append('<p>Test</p>'));

should be

openWindowDelayedPool.add(function(){
    $('.container').append('<p>Test</p>')
});

Even once you fix that, it’s not going to work properly however, the first will run but then all subsequent calls will simply find that isRunning is true and not execute.

In addition, as mentioned by @FelixKing in the comments:

setTimeout( function(val){

is incorrect. You don’t want to pass a parameter to this function, just use val within it.

setTimeout( function(){