Example
Perform a calculation and show the result in an <output> element:
<form oninput="x.value=parseInt(a.value)+parseInt(b.value)">0
<input type="range" id="a" value="50">100
+<input type="number" id="b" value="50">
=<output name="x" for="a b"></output>
</form>
Try it Yourself »
Definition and Usage
The for attribute specifies the relationship between the result of the calculation, and the elements used in the calculation.
Browser Support
The numbers in the table specify the first browser version that fully supports the attribute.
| Attribute | |||||
|---|---|---|---|---|---|
| for | 10.0 | Not supported | 4.0 | 5.1 | 11.0 |
Differences Between HTML 4.01 and HTML5
The <output> tag is new in HTML5.
Syntax
<output for="element_id">
Attribute Values
| Value | Description |
|---|---|
| element_id | Specifies a space separated list of ids of one or more elements that specifies the relationship between the result of the calculation, and the elements used in the calculation |