JavaScript · Error types

AggregateError

Bundles several errors, used by Promise.any when every promise rejects.

javascriptRunnable example javascript course

Syntax

new AggregateError(errors, message)

Example

Try it

const error = new AggregateError([new Error("a"), new Error("b")], "all failed");
console.log(error.errors.length, error.message);

Reference pages are the quick answer. The course explains the why, shows the full example and ends with a challenge.