Scope variable in ajax call

Question

Why the final console log is undefined?Variable time has a global scope and ajax call is async.

This is my code:

var time;
$.ajax({
    async: false,         


        

Answer 1

OK, a bit contrived, but I hope it shows the point regarding scope of time and timing ...

$.ajax({
    async: false,
    dataType: 'jsonp',
    type: 'GET',
    url: "http://www.timeapi.org/utc/now.json",
    success: function (data) {
        console.log(data.dateString);
        time = data.dateString;
    },
    error: function (data) {
        console.log("ko");
    }
});

window.setTimeout("console.log('time: '+time)",3000);

JSfiddle