Returns true if the given object is an Error. Otherwise, returnsfalse.
const util = require('util');
util.isError(new Error());
// Returns: true
util.isError(new TypeError());
// Returns: true
util.isError({ name: 'Error', message: 'an error occurred' });
// Returns: false
This method relies on Object.prototype.toString() behavior. It is
possible to obtain an incorrect result when the object argument manipulates@@toStringTag.
const util = require('util');
const obj = { name: 'Error', message: 'an error occurred' };
util.isError(obj);
// Returns: false
obj[Symbol.toStringTag] = 'Error';
util.isError(obj);
// Returns: true
Since v4.0.0 - Use types.isNativeError instead.
Generated using TypeDoc
Returns
trueif the givenobjectis anError. Otherwise, returnsfalse.This method relies on
Object.prototype.toString()behavior. It is possible to obtain an incorrect result when theobjectargument manipulates@@toStringTag.Deprecated
Since v4.0.0 - Use types.isNativeError instead.