HTMLOutputElement: htmlFor property

The htmlFor property of the HTMLOutputElement interface is a string containing a space-separated list of other elements' ids, indicating that those elements contributed input values to (or otherwise affected) the calculation. It reflects the for attribute of the <output> element.

Value

A string.

Examples

const outputElem = document.getElementById("result");
for (const id of outputElem.htmlFor.split(" ")) {
  const elem = document.getElementById(id);
  elem.style.outline = "2px solid red";
}

Specifications

Browser compatibility

See also

• <output>