This feature has been removed from the Web. Though some browsers may still support it, it is in the process of being dropped. Do not use it in old or new projects. Pages or Web apps using it may break at any time.
<isindex> is an HTML element which is used for putting a text field in the document for querying document.
<isindex> is intented to use inside of
<head> element by W3C, however browsers provide support wherever it is used in the document.
This element deprecated in HTML 4.01. Because, it is not a good idea to use
<isindex> for any purpose. Same effect can be created with a HTML form in a modern way.
Like all other HTML elements, this element supports the global attributes.
- This attribute adds its value as a prompt for text field.
- This attribute can be used in the case of needing to send query to a different URL. Action is not defined by W3C.
<head> <isindex prompt="Search Document... " /> </head>