Using callback-passing for asynchronous actions does not compose well and creates complex flows of passing callbacks around. The JavaScript community has produced several libraries to cope with this.

I need to make a function call with multiple arguments, let's say 5 arguments. I have 3, but 2 of them need to be computed by functions only available with javascript async APIs, sometimes through ...

While JavaScript itself is single-threaded, many JavaScript functions have supported asynchronous processing through callbacks (the variations on the jQuery AJAX function are just the most obvious ...