How to disable concurrent function call?

Question

JavaScript

How to prevent simultaneous execution of one asynchronous function? That is, there is an asynchronous function asyncFnc(data) {...};
If it is called and has not yet completed, how to prevent its call at this time, but put it in a queue and make sure that this call is executed, but after the first call has been processed?

Answer 1

One solution could be any queue implementation.

Answer 2

Without promises, on old callbacks: https://codepen.io/anon/pen/jLQBNj?editors=0012
Creates a wrapper over the function, calls sequentially, the last argument is a mandatory callback.

Answer 3

https://github.com/wizcorp/locks

mutex.lock(function () {
  console.log('We got the lock!');
  // do stuff
  mutex.unlock();
});