JQuery: Performing Synchronous Ajax Requests
I've Done Some jQuery in the Past, but I Am Completely Stuck on This. I Know About the Pros and Cons of Using Synchronous Ajax Calls, but Here It Will Be...
I've done some jQuery in the past, but I am completely stuck on this. I know about the pros and cons of using synchronous ajax calls, but here it will be required.
The remote page is loaded (controlled with firebug), but no return is shown.
What should I do different to make my function to return properly?
function getRemote() {
var remote;
$.ajax({
type: "GET",
url: remote_url,
async: false,
success : function(data) {
remote = data;
}
});
return remote;
}
4 Answers
As you're making a synchronous request, that should be
function getRemote() {
return $.ajax({
type: "GET",
url: remote_url,
async: false
}).responseText;
}
Example -
PLEASE NOTE: Setting async property to false is deprecated and in the process of being removed (link). Many browsers including Firefox and Chrome have already started to print a warning in the console if you use this:
Chrome:
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check .
Firefox:
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user’s experience. For more help
You're using the ajax function incorrectly. Since it's synchronous it'll return the data inline like so:
var remote = $.ajax({
type: "GET",
url: remote_url,
async: false
}).responseText;
how remote is that url ? is it from the same domain ? the code looks okay
try this
$.ajaxSetup({async:false});
$.get(remote_url, function(data) { remote = data; });
// or
remote = $.get(remote_url).responseText;
function getRemote() {
return $.ajax({
type: "GET",
url: remote_url,
async: false,
success: function (result) {
/* if result is a JSon object */
if (result.valid)
return true;
else
return false;
}
});
}
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