ErrorEvent: message property

Note: This feature is available in Web Workers.

The message read-only property of the ErrorEvent interface returns a string containing a human-readable error message describing the problem.

Value

A string.

window.addEventListener("error", (ev) => {
 console.log(`The error message: ${ev.message}`);
});

Specification
HTML # dom-errorevent-message

This page was last modified on ⁨May 30, 2025⁩ by MDN contributors.