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# jQuery - getScript( url, [callback] ) Method

# Description:

The jQuery.getScript( url, [callback] ) method loads and executes a JavaScript file using an HTTP GET request.

The method returns XMLHttpRequest object.

# Syntax:

Here is the simple syntax to use this method:

    $.getScript( url, [callback] )

## Parameters:

Here is the description of all the parameters used by this method:

- url: A string containing the URL to which the request is sent

- callback:: This optional parameter represents a function to be executed whenever the data is loaded successfully.

# Example:

Assuming we have following JavaScript content in /jquery/result.js file:

    function CheckJS(){
       alert("This is JavaScript");
    }

Following is a simple example a simple showing the usage of this method:

    <html>
    <head>
    <title>the title</title>
       <script type="text/javascript"
       src="/jquery/jquery-1.3.2.min.js"></script>
       <script type="text/javascript" language="javascript">
       $(document).ready(function() {
          $("#driver").click(function(event){
              $.getScript('/jquery/result.js', function(jd) {
                  // Call custom function defined in script
                  CheckJS();
              });
          });
       });
       </script>
    </head>
    <body>
       <p>Click on the button to load result.js file:</p>
       <div id="stage" style="background-color:blue;">
              STAGE
       </div>
       <input type="button" id="driver" value="Load Data" />
    </body>
    </html>

To understand it in better way you can Try it yourself.

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