Can't get data outside of success function of ajax request?

Question

JavaScript

I send a request to the server, an array is returned. Within the success function, the array is available, beyond it - no longer.
Here is the code:

var arrayElem;
$.ajax({
    	type: 'GET',
    	url: '../getElemArray/',
    	data: {'name': elem},
    	dataType: 'json',
    	success: function(data) {
    		arrayElem = data.arrayElem;
                alert(arrayElem);         // Выводит: 1,2,3
  }});
alert(arrayElem);                         // Выводит: undefined

Answer 1

So you have an asynchronous request. First, an alert will be displayed that is outside the function, and then when the request passes. will display an alert from success. Either put async: false in the ajax request parameters, or do all the processing in success