mozilla/rhino
Jan 2026 – Feb 2026
2 Months active
Languages Used
Java
Technical Skills
JavaSoftware DevelopmentTestingJSON parsingJavaScriptObject-Oriented Programming
Jimmy Miller
PROFILE
Jimmy Miller
Worked on the mozilla/rhino repository over two months, focusing on enhancing the reliability and standards compliance of the JavaScript engine. Addressed critical issues in date handling by optimizing the Date constructor’s argument evaluation, reducing redundant computations and improving performance. Improved JSON parsing in Java to correctly preserve negative zero, ensuring data fidelity. Refined constructor semantics in object-oriented code by updating function marking logic, aligning behavior with ECMAScript standards. Delivered a feature to enhance generator usability by including the final value in Generator.return results. Emphasized robust software development and testing practices, contributing to more predictable and maintainable engine behavior.
Overall Statistics
Feature vs Bugs
25%Features
Repository Contributions
4Total
Bugs
3
Commits
4
Features
1
Lines of code
38
Activity Months2
Your Network
21 peopleWork History
February 2026
3 Commits • 1 Features
Feb 1, 2026February 2026 monthly results for mozilla/rhino: Focused on correctness, API usability, and standards alignment in the Rhino engine. Delivered targeted bug fixes and one feature, with clear impact on data fidelity, constructor semantics, and generator ergonomics.
3 Commits • 1 Features
Feb 1, 2026February 2026 monthly results for mozilla/rhino: Focused on correctness, API usability, and standards alignment in the Rhino engine. Delivered targeted bug fixes and one feature, with clear impact on data fidelity, constructor semantics, and generator ergonomics.
February 2026
January 2026
1 Commits
Jan 1, 2026Month: 2026-01 — Rhino project work focused on improving the reliability and performance of date handling in the JavaScript engine. Delivered a critical bug fix for Date constructor argument evaluation and stabilized related code paths, with verification through tests.
January 2026
1 Commits
Jan 1, 2026Month: 2026-01 — Rhino project work focused on improving the reliability and performance of date handling in the JavaScript engine. Delivered a critical bug fix for Date constructor argument evaluation and stabilized related code paths, with verification through tests.
Activity
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Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
Java
Technical Skills
JSON parsingJavaJavaScriptObject-Oriented ProgrammingSoftware DevelopmentSoftware TestingTesting
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