HTML | <output> form Attribute

The HTML <output> form Attribute is used to specify that the <output> element can contain one or more forms.

Syntax:

<output form="form_id">

Attribute Values: It contains single value form_id which contains the value i.e form_id which specify the one or more than the output element belongs to. The value of this attribute should be id of the <form> element.

Example:

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<!DOCTYPE html> 
<html
    <head
        <title>
            HTML output Form Attribute
        </title
          
        <style
            body { 
                text-align:center; 
            
            h1 { 
                color:green; 
            
        </style
    </head
      
    <body
        <h1>GeeksforGeeks</h1
          
        <h2><output>Form Attribute</h2
          
        <form oninput = "sumresult.value = parseInt(A.value) 
                    + parseInt(B.value) + parseInt(C.value)"> 
            <input type = "number" name = "A" value = "50" /> + 
            <input type = "range" name = "B" value = "0" /> + 
            <input type = "number" name = "C" value = "30" /><br
              
            Result: <output form ="myGeeks" name = "sumresult">
            </output>
        </form
    </body
</html>                    

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Output:

Supported Browsers: The browser supported by HTML output form attribute are listed below:

  • Google Chrome
  • Firefox
  • Opera
  • Safari


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