XPathResult: booleanValue property

Note: This feature is available in Web Workers.

The read-only booleanValue property of the XPathResult interface returns the boolean value of a result with XPathResult.resultType being BOOLEAN_TYPE.

Value

The return value is the boolean value of the XPathResult returned by Document.evaluate().

Exceptions

TYPE_ERR

In case XPathResult.resultType is not BOOLEAN_TYPE, a DOMException of type TYPE_ERR is thrown.

Examples

The following example shows the use of the booleanValue property.

HTML

html

<div>XPath example</div>
<p>Text is 'XPath example': <output></output></p>

JavaScript

const xpath = "//div/text() = 'XPath example'";
const result = document.evaluate(
  xpath,
  document,
  null,
  XPathResult.BOOLEAN_TYPE,
  null,
);
document.querySelector("output").textContent = result.booleanValue;