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HTML | DOM Ol reversed Property
  • Last Updated : 15 Oct, 2020

The DOM Ol reversed Property is used to set or return whether the list items are in Descending order(9, 8, 7, 6, …) or in Ascending order(1, 2, 3, 4…).

Syntax: 

  • It is used to return the reversed property.
olObject.reversed

  • It is used to set the reversed property.
olObject.reversed = true|false

Property Values: 

  • true: It defines the list items are in descending order.
  • false: It defines the list items are in ascending order. It is by default set to false.

Return Value: It returns a Boolean value which represent the order i.e descending or ascending the list items.

Example-1: HTML Program that illustrate how to set the Property.  



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<!DOCTYPE html>
<html>
    <head>
        <title>Dom ol reversed Property</title>
    </head>
    <body>
        <h1 style ="color:green;">
        GeeksforGeeks</h1>
        <h2 style="color:green;">
         DOM ol reversed Property
        </h2>
         
<p>List of all computer Subjects are</p>
  
        <ol id="GFG" reversed>
            <li>Data Structures</li>
            <li>Operating System</li>
            <li>python programming</li>
            <li>DBMS</LI>
            <li>Computer Network</li>
        </ol>
        <button onclick="myGeeks()">Submit</button>
 
        <!-- Script to set the order of list -->
        <script>
          function myGeeks()  {
            var x = document.getElementById("GFG").reversed = false;
          }
        </script>
    </body>
</html>                                

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Output: 
Before clicking on the button: 
 

After clicking on the button: 
 

Example-2 : HTML program that illustrate how to return the property. 

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<!DOCTYPE html>
<html>
    <head>
        <title>Dom ol reversed Property</title>
 
    </head>
    <body>
        <h1 style ="color:green;">
        GeeksforGeeks
        </h1>
        <h2 style="color:green;">
         DOM ol reversed Property
        </h2>
 
         
<p>List of all computer Subjects are</p>
  
        <ol id="GFG" reversed>
            <li>Data Structures</li>
            <li>Operating System</li>
            <li>python programming</li>
            <li>DBMS</LI>
            <li>Computer Network</li>
        </ol>
        <button onclick="myGeeks()">Submit</button>
        <p id="sudo"
         style="font-size:25px;color:green;text-align:center;">
        </p>
 
 
        <!-- Script to print the order of list -->
        <script>
          function myGeeks()  {
            var x = document.getElementById("GFG").reversed;
            document.getElementById("sudo").innerHTML = x;
          }
        </script>
    </body>
</html>                                

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Output: 
Before clicking on the button: 
 

After clicking on the button: 
 

Supported Browsers: The browser supported by DOM ol reversed Property are listed below: 

  • Google Chrome
  • Firefox
  • Opera
  • Safari 6.0

 

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