Web Designing with jQuery > jQuery AJAX Methods

jQuery ajaxSend() and ajaxError() Methods

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  • Method: ajaxError() in jQuery
  • When an AJAX request fails, the ajaxError() method defines a function to run.

When an AJAX request is about to be made, the ajaxSend() method provides a function to perform.

Sending a header through the Ajax request anywhere in the 400's is the easiest approach to bubble that error from the server side (using php) to the client side (which is always associated with errors). When the Ajax request receives this, your error function is called.

The ajaxSend() method is used to send an XMLHttpRequest to the server. It can be used in the following ways:

  • To send data from the browser to the server
  • To make an AJAX call using JavaScript
  • To make an AJAX call using jQuery

The client side code for this function is as follows:

  • var xhr = new XMLHttpRequest();
  • xhr.open("POST", "http://www.example.com/my_ajax_call");
  • xhr.send(data);

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