Add message argument

Description

new AggregateError(errors)

new AggregateError(errors[, message])

Contributor guide

Tech stack

javascript

Domain

api

Issue type

feature

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

2

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-3 hours

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

clear

Prerequisites

Basic JavaScriptFamiliarity with Error classes

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

90

Research direction

The issue proposes adding an optional 'message' parameter to the AggregateError constructor, aligning with the TC39 proposal. The change is to modify the constructor to accept a second argument, `message`, and assign it to `this.message`. First, examine the current constructor signature in the repository's source file (likely index.js). Then, update the constructor to handle the new parameter, ensuring backward compatibility when only errors are provided. Finally, add a test case for the new functionality.