当循环跟随语句时，为什么JS Alert在console.log之前执行

Question

I have a JS code snippet which I use to introduce pause between calls being made. The snippet is:

function intPause(_wg_time_msec) {
    var _wg_now = new Date();
    var _wg_expire = _wg_now.getTime() + _wg_time_msec;
    while(_wg_now.getTime() < _wg_expire)
        _wg_now = new Date();
}

Now what I see is that if add an alert to this function before the while loop, it shows the alert instantly and then runs the while loop, but if I add a console.log instead of alert, console.log echoes the data after while loop completes. Can someone please help me in understanding this behavior and how can I get a better way to introduce pause between calls.

Answer 1

using jquery you can temporarily set ajax calls to be synchronous:

$.ajaxSetup({ "async": false });
// make synchornous ajax call
var jqHxr = $.get(....)
$.ajaxSetup({"async": true});