In what order will the numbers 1-4 be printed to t

In what order will the numbers 1-4 be printed to the console when the code below is executed?

(function() {
    console.log(1); 
    setTimeout(function(){console.log(2)}, 1000); 
    setTimeout(function(){console.log(3)}, 0); 
    console.log(4);
})();

Explanation

The values will be logged in the following order:

1 and 4 are displayed first since they are logged by simple calls to console.log() without any delay;
2 is displayed after 3 because 2 is being logged after a delay of 1000 msecs (i.e., 1 second) whereas 3 is being logged after a delay of 0 msecs.