The HTML Output element (<output>) is a container element into which a site or app can inject the results of a calculation or the outcome of a user action.
| Content categories | Flow content, phrasing content, listed, labelable, resettable form-associated element, palpable content. |
|---|---|
| Permitted content | Phrasing content. |
| Tag omission | None, both the starting and ending tag are mandatory. |
| Permitted parents | Any element that accepts phrasing content. |
| Permitted ARIA roles | Any |
| DOM interface | HTMLOutputElement |
This element includes the global attributes.
forids, indicating that those elements contributed input values to (or otherwise affected) the calculation.formid of a form element in the same document. If this attribute is not specified, the output element must be a descendant of a form element. This attribute enables you to place output elements anywhere within a document, not just as descendants of their form elements.nameHTMLFormElement API.This form provides a slider whose value can range between 0 and 100. and an <input> element into which you can enter a second number. The two numbers are added together and the result is displayed in the <output> element each time the value of any of the controls changes.
<form oninput="result.value=parseInt(a.value)+parseInt(b.value)"> <input type="range" name="b" value="50" /> + <input type="number" name="a" value="10" /> = <output name="result">60</output> </form>
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of '<output>' in that specification. | Living Standard | |
| HTML5 The definition of '<output>' in that specification. | Recommendation |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 10 | Yes | 4 | No | 11 | 7 |
for |
10 | Yes | 4 | No | 11 | 7 |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Yes | Yes | Yes | 4 | ? | Yes | Yes |
for |
Yes | Yes | Yes | 4 | ? | Yes | Yes |
<form>, <input>, <button>, <datalist>, <legend>, <label>, <select>, <optgroup>, <option>, <textarea>, <keygen>, <fieldset>, <progress> and <meter>.
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https://developer.mozilla.org/en-US/docs/Web/HTML/Element/output