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jQuery - AJAX load() Method


jQuery load() Method
The jQuery load() method is a simple, but powerful AJAX method.
The load() method loads data from a
server and puts the returned data into the selected element.
Syntax:


$(selector).load(URL,data,callback);

The required URL parameter specifies the URL you wish to load.
The optional data parameter specifies a set of querystring key/value pairs to send along with
the request.
The optional callback parameter is the name of a function to be executed
after the load() method is completed.
Here is the content of our example file: "demo_test.txt":


<h2>jQuery and AJAX is FUN!!!</h2>
<p id="p1">This is some text in a paragraph.</p>
The following example loads the content of the file "demo_test.txt" into a
specific <div> element:

Example

$("#div1").load("demo_test.txt");
Try it Yourself »

It is also possible to add a jQuery selector to the URL parameter.
The following example loads the content of the element with id="p1", inside
the file "demo_test.txt", into a specific <div> element:

Example

$("#div1").load("demo_test.txt #p1");
Try it Yourself »

The optional callback parameter specifies a callback function to run when the
load() method is completed. The callback function can have different parameters:

responseTxt - contains the resulting content if the call succeeds
statusTxt - contains the status of the call
xhr - contains the XMLHttpRequest object

The following example displays an alert box after the load() method
completes. If the load() method has succeeded, it displays "External content
loaded successfully!", and if it fails it displays an error message:

Example

$("button").click(function(){
  $("#div1").load("demo_test.txt", function(responseTxt, statusTxt, xhr){
    if(statusTxt == "success")
      alert("External content loaded successfully!");
    if(statusTxt == "error")
      alert("Error: " + xhr.status + ": " + xhr.statusText);
  });
});
Try it Yourself »


jQuery AJAX Reference
For a complete overview of all jQuery AJAX methods, please go to our jQuery
AJAX Reference.












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Reference: https://www.w3schools.com/jquery/jquery_ajax_load.asp