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Assignment Overview

Objective: Extend Node.js to allow ESM loaders to be used within workers.

Purpose: This task challenges you to contribute to a real-world open-source project by implementing a feature request from the Node.js community. The task will evaluate your ability to understand and modify complex systems, your proficiency in JavaScript and Node.js internals, and your capability to interact with an open-source community.

Task Requirements

  1. Research Phase:
    • Familiarize yourself with the Node.js architecture, particularly how it handles ESM and workers.
    • Understand the current limitations and why ESM loaders are not available within workers, as detailed in the feature request ESM loaders cannot be defined via Worker option execArgv in v20.
    • Review the Node.js contribution guidelines to ensure your development aligns with their standards and practices.
  2. Development Phase:
    • Set up a local development environment for Node.js.
    • Implement the functionality to allow ESM loaders within workers. This will involve modifying the Node.js core to enable and handle ESM loaders in the worker threads environment.
    • Ensure compatibility and non-breaking changes with existing Node.js features and modules.
  3. Testing and Validation:
    • Create comprehensive tests to cover the new functionality. This includes unit tests and integration tests that demonstrate the ESM loaders working effectively within workers.
    • Validate that your implementation does not negatively impact existing functionalities.
  4. Documentation and Community Interaction:
    • Document your changes, the approach taken, and any challenges faced during the implementation.
    • Prepare to interact with the Node.js community by potentially submitting a pull request or discussing your implementation in the relevant GitHub issue discussion.
    • Outline steps for setting up the development environment and how to test the new feature.

Deliverables

A fork of the Node.js repository containing:

  • Your code changes in a specific branch.
  • Tests for the new functionality.
  • A README file with: - A detailed explanation of the new feature and your implementation approach.
  • Instructions for setting up the development environment and testing the new feature.
  • A link to the original GitHub issue and any discussions or pull requests you have opened.

Evaluation Criteria

  • Technical Implementation: The effectiveness of the implemented feature in allowing ESM loaders within workers and how well it integrates with the existing Node.js architecture.
  • Code Quality: The readability, maintainability, and performance of the new code.
  • Testing: The thoroughness of the tests and their ability to ensure the feature works correctly and safely.
  • Documentation and Community Interaction: The clarity of your documentation and your proactive engagement with the Node.js community through discussions or pull requests.

Note to Candidates

This assignment is an advanced task that involves deep interactions with a major open-source project. It is a chance to demonstrate not only your technical skills but also your ability to contribute meaningfully to the community. We value thorough understanding, innovative solutions, and clear communication. Good luck!