HTML DOM Anchor rev Property

Last Updated : 06 Jan, 2022

The HTML DOM Anchor rev property is used to set or return the value of the rev attribute of the <a> element. The rev attribute is used to specify the relationship between the linked document and the current document.

Note: This property is not supported by HTML5.

Syntax:

It returns an anchor rev property.
```
anchorObject.rev
```

It is used to set the anchor rev property.
```
anchorObject.rev = "value"
```

Property Values:

alternate: It defines an alternative version of the document i.e print page, translates, or mirror.
stylesheet: It defines an external sheet for a document.
start: It defines the first document in a selection.
next: It defines the next document in a selection.
prev: It defines a previous document in a selection.
contents: It defines a table of contents for a document.
index: It defines an index for the document.
glossary: It defines an explanation of words used in the document.
copyright: It defines a document that contains a piece of copyright information.
chapter: It specifies the chapter of a document.
section: It defines a section of a document.
subsection: It specifies a subsection of a document.
appendix: It specifies an appendix for the document.
help: It specifies a help document.
bookmark: It specifies a related document.
nofollow: It is used by Google, to specify that the google search spider should not follow that link and is mostly used for paid links.
license: It defines copyright information for the document.
tag: It specifies a tag keyword for the current document.

Example 1: Below code illustrates that how to return the anchor rev property.

HTML

<!DOCTYPE html> 
<html> 
  
<body> 
    <center> 
        <h1>GeeksforGeeks</h1> 
  
        <h2>DOM Anchor rev Property</h2> 
  
        <p>Welcome to 
            <a href="https://www.geeksforgeeks.org" id="linkID"
                rev="nofollow" target="_self"> 
                GeeksforGeeks 
            </a> 
        </p> 
  
        <button onclick="btnClick()">Submit</button> 
  
        <p id="paraID" style="color:green;font-size:25px;"></p> 
  
        <!-- Script to return Anchor rel property -->
        <script> 
            function btnClick() { 
                var x = document.getElementById("linkID").rev; 
                document.getElementById("paraID").innerHTML = x; 
            } 
        </script> 
    </center> 
</body> 
  
</html> 

Output:

Example 2: Below HTML code illustrates how to set the anchor rev property.

HTML

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
        HTML DOM Anchor rev Property 
    </title> 
</head> 
  
<body> 
    <center> 
        <h1>GeeksforGeeks</h1> 
  
        <h2>DOM Anchor rev property</h2> 
  
        <p>Welcome to 
            <a href="https://www.geeksforgeeks.org" id="linkID"
                rev="nofollow" target="_self"> 
                GeeksforGeeks 
            </a> 
        </p> 
  
        <button onclick="btnclick()">Submit</button> 
  
        <p id="paraID" style="color:green;font-size:20px;"></p> 
  
        <!-- Script to set Anchor rel property -->
        <script> 
            function btnclick() { 
                var x = document.getElementById( 
                    "linkID").rel = "chapter"; 
  
                document.getElementById("paraID") 
                    .innerHTML = "The value of the rev " 
                    + "attribute was changed to " + x; 
            } 
        </script> 
    </center> 
</body> 
  
</html> 