Error.isError()The Error.isError() static method checks whether a value is an Error object.javascriptJavaScriptlimitedhttps://tc39.es/ecma262/multipage/fundamental-objects.html#sec-error.iserrorhttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Error/isErrorjavascript.builtins.Error.isErrorhttps://nowyoucanuse.com/features--is-error.html