Obsolete
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
The HTMLIsIndexElement interface provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating <isindex> elements.
The <isindex> element has been deprecated in HTML4 and removed in HTML5. This latest specification requires that this element implements HTMLUnknownElement rather than HTMLIsIndexElement.
Inherits properties from its parent, HTMLElement.
HTMLIsIndexElement.form Read only
HTMLFormElement representing the <form> element it belongs too. It can have the null value, if <isindex> isn't part of any form.HTMLIsIndexElement.promptDOMString representing a text to be prompted for the field.No specific method; inherits methods from its parent, HTMLElement.
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'HTMLIsIndexElement' in that specification. | Living Standard | No change from HTML5. |
| HTML5 The definition of 'HTMLIsIndexElement' in that specification. | Recommendation | Removed. <isindex> must now implement HTMLUnknownElement. |
| Document Object Model (DOM) Level 2 HTML Specification The definition of 'HTMLIsIndexElement' in that specification. | Obsolete | No change from Document Object Model (DOM) Level 1 Specification |
| Document Object Model (DOM) Level 1 Specification The definition of 'HTMLIsIndexElement' in that specification. | Obsolete | Initial definition. |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | No | No | No | No | No | No |
form
|
No | No | No | No | No | No |
prompt
|
No | No | No | No | No | No |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | No | No | No | No | No | No | No |
form
|
No | No | No | No | No | No | No |
prompt
|
No | No | No | No | No | No | No |
<isindex> was implementing this interface.
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/HTMLIsIndexElement