setTimeout(callback, 1000) Is callback put on the message queue after 1000ms or is it put to the message queue immediately? If it is put to the message queue a
As far as I know, JavaScript's normal behavior when I call a web API just like the setTimeout 4 times: it should call the first one then add it to a queue wait
I can not understand how the following code run. Why "1" is after "b" but "h" is after "3"? Should'n the order be: a, b, 1, 2, h, 3? Some articles said that the
elasticsearch-spark