dom-exception-modern

import DOMException, { createDOMException, isDOMException, toDOMException, domExceptionCodes } from 'dom-exception-modern'; // Use as a drop-in replacement for the deprecated 'domexception' const err1 = new DOMException('Custom error', 'NotFoundError'); console.log(err1.name); // 'NotFoundError' console.log(err1.message); // 'Custom error' // Create with utility const err2 = createDOMException('Operation aborted', 'AbortError'); console.log(err2.code); // 20 (AbortError code from legacy mapping) // Check for DOMException console.log(isDOMException(err1)); // true console.log(isDOMException(new Error())); // false // Convert unknown errors const converted = toDOMException('some string error', 'TypeError'); console.log(converted instanceof DOMException); // true // Legacy code constants console.log(domExceptionCodes.ABORT_ERR); // 20