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jQuery | slideDown() Method
  • Last Updated : 19 Feb, 2019

The slideDown() Method in jQuery is used to check the visibility of selected elements or to show the hidden elements. It works on two types of hidden elements:

  • Elements hidden using using jQuery methods.
  • Elements hidden using display: none in CSS.

Syntax:

$(selector).slideDown( speed, easing, callback )

Parameters: This method accepts three parameters as mentioned above and described below:

  • Speed: It is an optional parameter and used to specify the speed of the fading effect. The default value of speed is 400 millisecond. The possible value of speed are:
    • milliseconds
    • “slow”
    • “fast”
  • easing: It is an optional parameter and used to specify the speed of element to different points of animation. The default value of easing is “swing”. The possible value of easing are:
    • “swing”
    • “linear”
  • callback: It is optional parameter. The callback function is executed after slideDown() method is completed.

Below example illustrates the slideDown() method in jQuery:

Example: This example display the hidden element by using slideDown() method.




<!DOCTYPE html>
<html>
  
<head>
    <title>
        jQuery slideDown() Method
    </title>
      
    <script src=
    </script>
      
    <!-- Script to illustrate slideDown() method -->
    <script>
        $(document).ready(function() {
            $(".geek").click(function() {
                $("h1").slideDown();
            });
        });
    </script>
</head>
  
<body>
      
    <!-- hide element using CSS -->
    <h1 style = "display:none" >
        GeeksforGeeks
    </h1>
  
    <button class="geek">
        Click on button to slide down
    </button>
</body>
  
</html>                    

Output:
Before clicking on the button:

After clicking on the button:




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