Ajax sometimes work and sometimes just don't work

1. Why Ajax is not working sometimes?
2. What is Cache false in Ajax?
3. What happens when one Ajax call is still running and you send an another Ajax call before the data of first AJAX call comes back?
4. How do I set cache false in Ajax call?
5. What is cache in Ajax call?
6. How do you check if Ajax call is completed?
7. Can you have an Ajax call within an Ajax call?
8. How do I wait for Ajax response?
9. Is jQuery dead?
10. Is Ajax front end or backend?
11. What does an Ajax call return?

Why Ajax is not working sometimes?

Probably you have elements added to page after listener is set. A few possible problems, Wrap it in a document ready event (if you do not already) Ensure you stop the link click ("I call it from HTML link") from occurring with e.

What is Cache false in Ajax?

cache=false . You need to make your request using the $. ajax() method so you can actually set the cache option to false . However, all this does is what you call a "quick fix hack". It adds _=current_timestamp to the query string so that the request will not be cached.

What happens when one Ajax call is still running and you send an another Ajax call before the data of first AJAX call comes back?

6 Answers. Since Ajax calls are asynchronous, the application will not 'pause' until an ajax call is complete, and simply start the next call immediately. JQuery offers a handler that is called when the call is successful, and another one if an error occurs during the call. $.

How do I set cache false in Ajax call?

1. Method 2 : Set cache=false explicitly in $. ajax request. We can set cache=false in $. ajax option settings. ...
2. Method 3 : Set cache=false explicitly in $. get request. We can set cache=false in $. ...
3. Method 4 : Appending timestamp to all ajax requests. We can set timestamp as a querystring to all ajax requests. $.

What is cache in Ajax call?

I would like to enable caching of an ajax response in javascript/browser. From the jquery. ajax docs: By default, requests are always issued, but the browser may serve results out of its cache. To disallow use of the cached results, set cache to false.

How do you check if Ajax call is completed?

jQuery ajaxStop() Method

The ajaxStop() method specifies a function to run when ALL AJAX requests have completed. When an AJAX request completes, jQuery checks if there are any more AJAX requests. The function specified with the ajaxStop() method will run if no other requests are pending.

Can you have an Ajax call within an Ajax call?

Within the success of this ajax call another AJAX call is made. ... The second call checks whether the email has already been registered. If it has been then the second AJAX call recieves no returned data as shown in firebug and Chrome console in the case.

How do I wait for Ajax response?

“jquery ajax wait for response” Code Answer's

1. //jQuery waiting for all ajax calls to complete b4 running.
2. $. when(ajaxCall1(), ajaxCall2()). done(function(ajax1Results,ajax2Results)
3. //this code is executed when all ajax calls are done.
4. );
5. ​
6. function ajaxCall1()
7. return $. ajax(
8. url: "some_url.php",

Is jQuery dead?

At least part of the jQuery number is because it's still required as a dependency for AngularJS, as well as older versions of Bootstrap and probably many others. So while jQuery may be installed on a huge portion of the web, it's not always being used by itself. ... So jQuery is not dead yet, but dying.

Is Ajax front end or backend?

JavaScript is a scripting language. In the front-end, it's used to make web pages dynamic. Additionally, it provides full-stack technologies with libraries and frameworks for both client-side and server-side scripting. AJAX.

What does an Ajax call return?

ajax() function returns the XMLHttpRequest object that it creates. Normally jQuery handles the creation of this object internally, but a custom function for manufacturing one can be specified using the xhr option. ... abort() on the object will halt the request before it completes.